Answer:
A) They contain many carbon atoms.
Explanation:
Proteins are considered organic molecules because they are made up of carbon atoms. Proteins give your body energy and allows your body to run the way it does. Proteins also aren't considered organic molecules because they are small, because they are not used by living things, or because they contain nitrogen.
Hope this helps.
-lvr
Match the enzymes to their role in the DNA replication process
Answer: A = 3, B = 5, C = 1, D = 2, E = 4
Explanation: A. RNA primase
B. ligase
C. helicase
D. polymerase
E. topoisomerase
Pairs
1. unwinds the DNA molecule
2. synthesizes the complementary daughter strands
3. synthesizes RNA primer at the initiation point
4. creates nicks ahead of the replication fork to relieve tension from unwinding
5. joins the Okazaki fragments together
Which statement about venation is INCORRECT?
Some flowering plants have leaves that lack venation even though the stems and roots have vascular bundles.
Venation is important for delivering water to leaf cells and taking sugars to the stem.
Venation refers to arrangement of the veins within a leaf.
Venation patterns include pinnate, palmate and dichotomous.
In general, monocots exhibit parallel venation.
Answer:
Some flowering plants have leaves that lack venation even though the stems and roots have vascular bundles.
Explanation:
Venation refers to the arrangement of the veins in the leaf of a plant which are involved in the transport of material in the plants.
The xylem present in leaves transports water to the leaf whereas phloem transports sugar from the leaves to different parts of the plants. In angiosperms, no plants are known whose leaves lack the veins but stem and root possess the vascular bundles.
Monocot is characterised by their parallel veins whereas dicots possess reticulate veins. Also, the compound leaves possess one of the three types of venation that are palmate, pinnate and dichotomous.
Since no angiosperm posses, veinless leaves, therefore, is the correct answer.
In snapdragons pink-flowered plants (RW) are produced when red-flowered (RR) plants are crossed with white-flowered (WW) plants. This type of inheritance can best be described as:
2. As a result of your initial efforts you were able to detect the presence of protein K using IgG. However, when your lab mate repeated your work after heating protein K they were unable to detect the presence of protein K using IgG. Explain why your lab mate was unable to detect the presence of protein K with IgG even though you demonstrated that it was possible
Answer:
Protein K is a protein that can available in the human cell nucleus that binds to pre-messenger RNA as a part of heterogenous ribonucleoprotein. IgG is one of the five isotypes of immunoglobulin or antibodies.it is the most common antibodies in the blood circulation and makes the 75% of total antibody.
When you heat solution, generally protein k activity increase with an increase in the heat but up to an extent or point called optimum temp. The optimal temperature for activity ranges between 50-65°c. When an increase in temperature help with protein unfolding easing the ability for protein k to break down those proteins.
1. In a standard autoclave procedure dry heat is used combined with high pressure
A. True
B. False
2. Household bleach is routinely used in dilution 1:10
A. True.
B. False
Answer:
1) F, 2)True
Explanation:
1) autoclave uses steam
2) bleach dilute is 1:10
1. It is false that In a standard autoclave procedure dry heat is used combined with high pressure.
2. It is true that Household bleach is routinely used in dilution 1:10
1. In a standard autoclave procedure, moist heat, not dry heat, is used in combination with high pressure. Autoclaves use steam under high pressure to achieve sterilization by destroying microorganisms and their spores. The high-pressure steam provides effective heat transfer and penetration, ensuring the sterilization of the items being processed.
2. Household bleach is often used in a dilution of 1:10, meaning one part bleach is mixed with nine parts water. This dilution is commonly recommended for various household cleaning and disinfection purposes. It helps to ensure effective disinfection while reducing the potential harmful effects of concentrated bleach.
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The process that uses carbon dioxide but not light energy to make sugars is called
Answer:
The Calvin Cycle
Hope this helps.
carbon fixation
Explanation:
Carbon dioxide is converted into sugars in a process called carbon fixation; photosynthesis captures energy from sunlight to convert carbon dioxide into carbohydrate.
. g Determine the number of moles in 0.05 µg of a 300 bp insert DNA. There are 660 g/mol-bp. What is the molar ratio of insert to vector if you have 10 ng of vector that is 2686 bp?
Answer:
a. 2.4 x 10^-24 mol
b. 5.4 x 10^4
Explanation:
a. Mass of DNA (of 0.05µg)= 0.05µg x number of base pairs x 650Da
=0.05x300x650Da
(1 Da=1.67x10-24g)
=9750 x 1.67 x 10^-24
=16282.5 x 10^-19µg =1.62 x10^-21 g
No. of moles of insert DNA=mass of DNA(in g)/mass of one mole in g/mol
=1.6 x 10^-21g/660 g/mol
=2.4 x 10^-24 mol
Hence, moles of the insert DNA is calculated as 2.4 x 10^-24
b.
First of all, let us determine number of moles of vector to calculate the molar ratio.
No. of moles of vector=10 x 10^-9 x 2686 x 650 x 1.67 x 10-24/660
=2.68x6.5x1.67x10-27/660
=4.4 x 10^-29 mol
Molar ratio of insert to vector=2.4 x 10^-24/4.4x10^-29
=5.4 x 10^4
So, the molar ratio of the vector and insert as per the data is calculated as 5.4 x 10^4
Dermis _____ system is responsible for thermoregulation and for development of inflammatory skin processes
Answer:
Integumentary system
Explanation:
This system is responsible for development of skin, hair, nails, glands, and nerves and it serves as a protector. There are many organs in this system too.
While viewing stained onion root tip cells you notice that distinct chromosomes cannot be observed in most of the cells. This is because most of the cells Group of answer choices
Answer:
This is because must of the cell must be in INTERPHASE.
Explanation:
The onion root tip is the growing part of the onion and many cells in it undergo mitosis. In the lab, it is prepared in a way that the cells become flat on the microscope slide so that you can observed them well.
In the cell cycle, most of the onions root tip cells are in interphase, they spend most of their life in interphase. In interphase, there is no observable changes in the celks, the cells keep on growing and the nucleus is been duplicated. This is because most of the onion root cells spend most of their time reproducing and growing in the interphase stage. During the interphase, the cells can still be seen in dark spots because the nucleus is still present and prophase has not started yet.
Using the key choices choose all responses that apply to the following descriptions. Some terms may be used more than once.
Key:
a. stratum basale
b. stratum corneum
c. stratum granulosum
d. stratum lucidum
e. stratum spinosum
f. papillary layer
g. reticular layer
h. epidermis as a whole
i. dermis as a whole
_____________1. layer of translucent cells in thick skin containing dead keratinocytes
_____________2. two layers containing dead cells.
_____________3. dermal layer responsible for fingeiprints.
_____________4. epidermal layer exhibiting the most rapid cell division.
_____________5. layer including scalelike dead cells, full of keratin, that constantly slough off.
_____________6. layer named for the numerous granules present.
_____________7. location of melanocytes and tactile epithelial cells.
_____________8. area where weblike pre-keratin filaments first appear.
_____________9. deep layer of the dermis
_____________10. layer that secretes a glycolipid that prevents water loss from the skin
Answer and Explanation:
b. stratum corneum: 5. layer including scalelike dead cells, full of keratin, that constantly slough off.
The most superficial epidermal layer conformed of squamous, plane, thin cells with keratin in their cytoplasm, that are continuously released. These cells are replaced by new cells that have the same destiny.
d. stratum lucidum
: 1. layer of translucent cells in thick skin containing dead keratinocytes
Also known as the transparent layer, is only located in the thicker parts of the skin, such as the hands´ palms and the feets´ soles. This layer is so thin that the cells´ edges and some ties their nucleus can not be identified. Keratinocytes are diaphanous and are grouped together. They lack a nucleus and the cytoplasm is filled with a gelatinous substance, eleidin, which will transform into keratin.
b. stratum corneum and d. stratum lucidum 2. two layers containing dead cells.
c. stratum granulosum: 6. layer named for the numerous granules present.
These layer cells contain granules filled with keratohyalin that is needed for keratin production. These cells are arranged in two to four layers, and they begin to degenerate. This is why they show high lysosomes enzymes concentration. This is also the layer where it begins keratinization.
e. stratum spinosum: 10. layer that secretes a glycolipid that prevents water loss from the skin.
8 to 10 irregular cell layers. These cells are rich in DNA necessary for proteinic synthesis that ends in keratin production, and Langerhans cells that belong to the immunity system. This stratus is also known as "Malpigio stratum". It also produces a glycoprotein that helps to prevent water loss.
a. stratum basale 4. epidermal layer exhibiting the most rapid cell division.
7. location of melanocytes and tactile epithelial cells.
Stratum basale is the innermost germinative, single, basal layer of the epidermis composed of basal cuboidal-shaped cells. These cells are the precursor of keratinocytes, this is why this layer is also called germinativum. In this basal layer, there are also Merkel cells as well as melanocytes. The former associated with nerve fibers, transmit part of the touch, and the latter, form the pigment responsible for skin coloring and tanning, melanin.
f. papillary layer: 3. dermal layer responsible for fingerprints.
This stratum is a thin superior layer in the dermis. It has conjunctive tissues and blood vessels that nourish the skin and helps to control the temperature. It´s surface forms papilla that increases the mechanical union between dermis and epidermis.
g. reticular layer: 9. deep layer of the dermis
The inner and thicker layer of the dermis. It is characterized by it´s thick, irregular bundles of collagen fibers and elastic fibers. These are not randomly oriented but forming the regular skin tightening lines known as Langer lines.
h. epidermis as a whole: 7. location of melanocytes and tactile epithelial cells.
Composed of a plane stratified keratinized epithelium that constantly grows and maintains a normal thickness by the process of peeling. The Epidermis is made up of five cell layers, which have different functions: Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.
i. dermis as a whole: composed of conjunctive dense tissue that provides support, resistance, and thickness to the skin.
How have the fields of biotechnology, genetic engineering, and molecular biology affected the agricultural job
market?
A.They have created more jobs
B.They have spread the industry internationally
C.They have made the market obsolete
D.They have decrease the demand for farmers
Answer:
I think It's A. Hope it helps! :)
Explanation:
Which inequalities are true? Check all that apply.
DOVE
Vo <3
Vox
V6 <2
V6 > 8
16
Answer:
Vo<3, V6<2,
Explanation:
Inequalities is a mathematical expression use to relate two values together.
From the above question, Vo<3, V6<2 is the true because the two option relate two values together.
Vo< 3 because V0 present is one and it is less.
V6 <2 is because V6 is not up to 2.
define the term overfishing in your own words. What would happen to the population of fish in the ocean if laws did not regulate overfishing? What would happen to the ocean eco-system?
Answer:
Overfishing is the level of excessive capture of marine animals.
Explanation:
Overfishing poses a great threat to marine biodiversity and ecological balance. The abundance of populations of large predators such as cod, tuna and swordfish has decreased by 90% due to overfishing. If we continue fishing at the current rate, scientists estimate that by 2048 any fish in the sea will have disappeared. Our seas are vulnerable and sensitive and a sudden and significant change in the number of individuals of a species can put great pressure on their ecological environment and a change in the balance of the oceans, and even in the food chain of other species.
Which of the following statements is true?A. An isolated system cannot exchange either matter or energy with its surroundings. B. Organisms are open systems when they are out of their habitats. C. Organisms are isolated systems because they have their own machineries in the cells to supply all the matter and energy they need. D. Open systems are called as such because they do not absorb energy, but just openly release the energy to their surroundings.
Answer:
A
Explanation:
An isolated system can NOT exchange energy or matter with it's surroundings. This is why it is isolated.
Changes in DNA sequence from one generation to the next may result in offspring that are altered in fitness compared with their parents. The process of change and selection over the course of many generations is the basis of
Answer:
This question lack options, options are:
A. Mutation
B. Evolution
C. Heredity
D. Reproduction
The correct answer is B.
Explanation:
Evolution is essentially a process of genetic change over time, that is, it is the result of accumulated changes in the composition of the gene pool. Variation is the raw material of evolution. Without genetic variation, evolution is not possible. The ultimate source of all genetic variation is mutation. A mutation is a stable and inheritable change in genetic material. Mutations alter the DNA sequence and therefore introduce new variants. Many of these variants are usually eliminated, but occasionally some of these variants can be successful and incorporated into all individuals of the species. Mutation is a factor that increases genetic diversity. This is how evolution explains the origin of various life forms as a result of changes in their genetic load. The inheritance of these variations through offspring of parents who carry the variation, although the genetic endowment of a single organism is the same throughout life, the genetic makeup of a species, understood as a whole (genetic background), changes throughout from many periods of life. Mutations and variability, the product of natural DNA recombination, provide diversity in the genetic material of a species.
Why did scientists struggle for thousands of years to accurately describe the solar system?
Answer:
they didnt have photography
Explanation:
Answer:
hey there answer is wrong
Explanation:
soooo its that the planets appeared to be moving backwards. i got the answer right plus look it up if you dont belive me, and that wasnt even an answer choice.
During which phase of the cell cycle do chromatids form?
Which statement best explains why water is essential for all living things?
A) Water makes up 65% of human beings.
B) Water is an essential component of blood.
C) Water covers 7596 of Earth's surface.
D) Water is necessary for cellular functions.
Answer:
d) Water is necessary for cellular functions.
Explanation:
if we cant work on a cellular level, we wont work at all!
hope i helped!
Answer:
the answer is d) in edge 2021
Explanation:
water is necessary for cellular functions
HOPE THIS HELPS
Which statements describe the characteristics of an individual protein? Select two options. It is specific to one biochemical reaction. It increases the activation energy needed for a reaction. It can catalyze many different reactions. It increases the rate of a biochemical reaction. It slows down the rate of a biochemical reaction.
Answer: . It is specific to one biochemical reaction
It increases the rate of a biochemical reaction.
Explanation:
Protein acts as enzymes and are useful in reactions that occurs in the cell as a catalyst.
Enzymes are characterized by speeding up the rate of chemical reactions without destroying themselves or disturbing equilibrium that occurs between the reactant and the product. Individual protein are specific to a particular reaction and are good catalyst of chemical reaction as they help to speed up reactions.
The branch of science which deals with chemistry uses in biology is called biochemistry.
The correct option to the question is A and D
The digestion of protein requires the enzyme which catalyzes the reactant and speeds up the reaction by decreasing the activation energy. According to this concept, option B is wrong.
The protein molecule has an active binding site that is specific to each protein. Each protein has a specific type of enzyme that catalyzes the reaction. Hence option C is also wrong.
Hence, the correct option is A and C that is an It is specific to one biochemical reaction and It slow down the rate of a biochemical reaction.
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A student has the high-power lens in position and appears to be intently observing the specimen. The instructor, noting a working distance of about 1 cm, knows the student isn't actually seeing the specimen. How so?
Answer:
Explanation:
Based on this the student is out if the focus, and just viewing on the dust.Basically, high -power lens is a non oil immersion lens, with a short working distance of 1cm,which will be about a few millimeters.Hence the student will be out of focus, just carry out a fruitless effort focusing on the dust, missing the focus on the specimen.
How is NADPH different from NADP+?. A. It has lost one electron. B. It has gained one electron. C. It has lost one proton. D. It has gained one proton
Answer:
A. It has lost one electron
Explanation:
Since the H has been replaced by a +, this means that the Hydrogen is now a positive ion. For this to happen, it would have to lose an electron.
Gaining one would make it negative, and protons cannot be gained or lost under normal circumstances.
Answer:
B. It has gained one electron.
Explanation:
Hope it helps .
Which would make for a weak claim?
1. a blog cited as the source
2. a large sample size
3. clear variables and controls
4. multiple trials
Answer:
A blog cited as a source
Explanation:
Blogs often contain opinions rather than facts
Which would make for a weak claim?
1. a blog cited as the source
2. a large sample size
3. clear variables and controls
4. multiple trials
Two true-breeding white strains of the plant Illegitimati noncarborundum were mated, and the F1 progeny were all white. When the F1 plants were allowed to self-fertilize, 126 white-flowered and 33 purple-flowered F2 plants grew. a. Using the ratio of these offspring, determine how flower color is inherited? b. Define allele symbols.. Indicate (using these symbols) the genotypic classes and the corresponding phenotypic ratios of the F2. c. A white F2 plant is a allowed to self-fertilize. Of the progeny ¾ are white-flowered, and ¼ are purple-flowered. What is the genotype of the white F2 plant? Briefly explain how you determined your answer.
Answer and Explanation:
Suppression: refers to an allele of a gene that can annul the expression of the other gene. The suppressor gene might be associated with its own particular phenotype (such as color) or it might not have any detectable effect other than suppressing the other gene expression.
Available data:
Two true-breeding white strains of the plant Illegitimati noncarborundum were mated the F1 progeny were all white the F1 plants were allowed to self-fertilize 126 white-flowered and 33 purple-flowered F2 plants grew.a. Using the ratio of these offspring, determine how flower color is inherited?
There are two genes involved in the color expression, we might define them as C gene for color, and W gene for suppression of the color. So, W inhibits the expression of C. The dominant C allele expresses purple, while the recessive allele does not express color.
As there are two genes interacting, there are 16 possible offspring produced. So, if the total individuals in the F2 are 159 (126 + 33), then:
159 individuals in the F2 ------------ 100% progeny ---- 16
126 white-flowered individuals------79.25% -----------12.68
33 purple-flowered individuals -----3.32 % ------------ 3.32
These proportions approximate to the proportion 13:3, corresponding to the genetic interaction "suppression".
b. Define allele symbols. Indicate (using these symbols) the genotypic classes and the corresponding phenotypic ratios of the F2.
As we mentioned before, the proposed symbols for these genes are C for the color gene and W for the suppressor gene. The dominant allele C expresses purple, while the recessive allele c does not express any color. W allele inhibits C, and w allele does not inhibit c.
1st Cross:
Parental) WWCC x wwcc
Gametes) WC WC WC WC
wc wc wc wc
Punnet square) WC WC WC WC
wc WwCc WwCc WwCc WwCc
wc WwCc WwCc WwCc WwCc
wc WwCc WwCc WwCc WwCc
wc WwCc WwCc WwCc WwCc
F1) 100% WwCc
2nd Cross:
Parental) WwCc x WwCc
Gametes) WC Wc wC cc
WC Wc wC cc
Punnet square) WC Wc wC wc
WC WWCC WWCc WwCC WwCc
Wc WWCc WWcc WwCc Wwcc
wC WwCC WwCc wwCc wwCc
wc WwCc Wwcc wwCc wwcc
F2) White-flowered plants 13/16 = 9/16 + 3/16 + 1/16
W-C- 9/16
W-cc 3/16
wwcc 1/16
Purple-flowered plants 3/16
wwC-
c. A white F2 plant is allowed to self-fertilize. Of the progeny ¾ are white-flowered, and ¼ are purple-flowered. What is the genotype of the white F2 plant? Briefly explain how you determined your answer.
3/4 = 12/16 white
1/4 = 4/16 purple
To get the proportion 3:1 we should self-fertilize and individual that is heterozygous for one of the genes and homozygote for the other gene. As we have 1/4 of purple-flowered plants, we can assume that there must be present the dominant allele C for purple color. So, the homozygote dominant allele should belong to the C gene, and the W gene should be heterozygous one needed to get the required proportion. The cross would be like:
Parental) WwCC x WwCC
Gametes) WC wC WC wC
WC wC WC wC
Punnet square)
WC wC WC wC
WC WWCC WwCC WWCC WwCC
wC WwCC wwCC WwCC wwCC
WC WWCC WwCC WWCC WwCC
wC WwCC wwCC WwCC wwCC
F3) White-flowered plants
4/16 WWCC
8/16 WwCC
Purple-flowered plants
4/16 wwCC
The flower white trait is inherited as an epistatic trait because it resembles a 13:3 phenotypic ratio.
Epistasis, also called dominant suppression, is a type of gene interaction that deviates from 9:3:3:1 phenotypic proportions due to the presence of a single allele that suppresses the expression of another gene.In this case, the C can be defined as the color gene and S the suppressor gene.Parental P line >> SsCc x SsCcGametes >> SC Sc sC ccF1 Punnet squareSC Sc sC sc
SC SSCC SSCc SsCC SsCc
Sc SSCc SScc SsCc Sscc
sC SsCC SsCc ssCc ssCc
sc SsCc Sscc ssCc sscc
F2 White plants = S-C- 9/16 + S-cc 3/16 + sscc 1/16 >> F2 White plants = 9/16 + 3/16 + 1/16 = 13/16 The genotype of the white F2 plant is SsCC (it give us a phenotypic rate of 3:1 after auto pollination).In conclusion, the flower white trait is inherited as an epistatic trait because it resembles a 13:3 phenotypic ratio.
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What are the characteristics of static electricity?
PLZZZZ HELPP!!
Explanation:
Static electricity is a form of electrical energy which is produced by the imbalance of positive and negative charge.
The characteristics of static electricity are:
1. The charges do not move and therefore called static in nature.
2. The charges of static electricity possess less energy, therefore, remain for a small period.
3. Static electricity is build up mostly on non- humid dry days.
4. The charge of static electricity does not generate electric fields but they are constant.
5. Due to a constant electric field, no magnetic field is generated.
6. The static electricity can be observed in the lightning, Van-de graff generator and xerox machines.
The punnets square shows a text cross of mice that are heterozygous for both traits what will the offspring be fill in the white boxes of the punnets square with all the possible offspring genotypes
Answer:
Punnett Square answer as shown in the image
Explanation:
What would be an appropriate evolutionary explanation of the fact that the ordering of some homeotic genes (e.g., Hox genes) on vertebrate chromosomes parallels the ordering of homeotic genes on fruit fly chromosomes? Group of answer choices
Answer:
The correct answer is "The similar ordering of homeotic genes in animals, both vertebrate and insect, is due to ancient homology".
Explanation:
The missing options of this question are
a. Homeotic genes show that insects and vertebrates are closer relatives than the traditional classification system indicates.
b. The similar ordering of homeotic genes in animals, both vertebrate and insect, is due to ancient homology.
c. The similarity is a coincidence, not documented in other invertebrates and largely a result of random mutations.
d. Homeotic genes of different animal lineages might be ordered in a similar fashion, yet their sequences are completely different.
The correct answer is option b. "The similar ordering of homeotic genes in animals, both vertebrate and insect, is due to ancient homology".
Ancient homology, is a concept proposed by Charles Darwin that explains that species have homologous structures because they share a common ancestor. This explains as well why the ordering of some homeotic genes on vertebrate chromosomes parallels the ordering of homeotic genes on fruit fly chromosomes. Even though vertebrates are not as evolutionary close to fruit fly as other species, they share an ancient common ancestor as well. This same phenomena explains other homologies seeing in species, such as the adaptive mimetic diversity across butterflies.
A medical term with a suffix usually describes a/an
Answer:
a condition, an action, or a relationship.
Explanation:
Identify the importance of carbon. Check all that apply
Answer:
It ensures life on Earth can exist.
2. It is the universal solvent.
3. It is a part of all organic compounds, including carbohydrates and nucleic acids.
4. It is found in every living thing.
I think so not sure sorry:-)
Answer:
A. It ensures life on Earth can exist
C. It is a part of all organic compounds, including carbohydrates and nucleic acids.
D. It is found in every living thing
Explanation:
Which carries the code for protein synthesis from the cell nucleus to the cytoplasm?
Answer:
mRNA, or messenger RNA
Answer:
the right answer would be MRNA or the messenger of RNA
Explanation:
Choose one of the offspring from the image and decide on your own the genotype of his or her partner then draw a pedigree chart showing the possible genotypes of their offspring make sure your Pedegree chart clearly shows that individuals are homozygous and heterozygous For the hemophilia gene they charge to show all possibilities for the offspring
Answer:Plato answer
Explanation:
A pedigree chart showing the possible genotypes of their offspring is that in which it shows about the affected male and the purebred female.
What are Pedegree chart ?A pedigree indicates relationships among own circle of relatives participants and shows which people have sure genetic pathogenic , traits, and sicknesses inside a own circle of relatives in addition to important status. A pedigree may be used to decide ailment inheritance styles inside a own circle of relatives.
So in this case we will discuss that how the purebred female and the affected male are the genotypes.
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