Answer:
A proton is a subatomic particle with a mass defined as 1 and a charge of +1 (positive charge). A proton is indicated by either the symbol p or p+. The nucleus of every atom contains protons. The number of protons of an atom of an element is its atomic number.
Explanation:
Several genes in humans in addition to the ABO gene (I ) give rise to recognizable antigens on the surface of red blood cells. The MN and Rh genes are two examples. The Rh locus can contain either a positive or a negative allele, with positive being dominant to negative. M and N are codominant alleles of the MN gene. Suppose a child's blood type is B MN Rh(neg). The mother's blood type is O N Rh(neg). Check all of the blood types below that the father could have. (Assume no involvement of the Bombay phenotype; everyone is HH).
A. O M Rh- O M Rh -
B. B MN Rh+ B MN Rh+
C. A M Rh+ A M Rh+
D. O MN Rh+ O MN Rh+
E. B MM Rh+ B MM Rh+
F. B NN Rh-
Answer:
Option B and E
Explanation:
Since the child's blood type is
B (BB or BO) MN Rh(neg)
The mother's bloodtype is
O (OO) N (NN) Rh(neg)
To produce a child with the B bloodtype when mother is OO, the father has to have either one or two copies of the B bloodtype (BB or BO).
To also produce a child with MN Bloomington when mother is NN, the father has to have either the M (MM) bloodtype or the MN bloodtype.
Thus, the father's bloodline could be
B M bloodtype Rh(+)
Or
B MN bloodtype Rh(+)
During which phase of the cell cycle do chromatids form?
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.
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.
Learn more in:
https://brainly.com/question/25217589
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:
WILL GIVE BRAINLIEST Cohesion is most directly related to the ability of the plant to do which of the following? A. push sugar down towards the roots with gravity B. bend toward the source of light C. open and close the guard cells D. pull water up the stem against gravity
Answer:
D. pull water up the stem against gravity
Explanation:
Cohesion exists as hydrogen bonding exists between water molecules, which is the attraction of water molecules by the partially positive charge on the hydrogen and the partially negative charge on the oxygen. This allows water to stay connected as it travels up roots, combating gravity.
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.
Consider this animal cell. Which organelle is labeled A.
.
Mitochondrion
Ribosome
Golgi apparatus
Lysosome
Answer:
Golgi apparatus is the answer on e2020 !!!!
Explanation:
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 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:
Using a series of arrows, draw the branched metabolic reaction pathway described by the following statements, and then answer the question at the end. Use red arrows and minus signs to indicate inhibition.
L can form either M or N.
M can form O.
O can form either P or R.
P can form Q.
R can form S.
O inhibits the reaction of L to form M.
Q inhibits the reaction of Oto form P.
S inhibits the reaction of O to form R.
Which reaction would prevail if both Q and S were present in the cell in high concentrations?
a. L → M
b. M → O
c. L → N
d. O → P
Answer:
1) The branched metabolic reaction pathway is attached.
2) The most prevalent reaction is L-->N
Explanation:
The reaction that eventually will prevail is the formation of the N molecule.
When Q and S are in high, they will inhibit the formation of P and R which are the molecules that form them. So, Eventually, there will not be P and R molecules, and hence, there will not be any more Q and S molecules.
L can still form equally M and N molecules. But as M forms O, and O inhibits M formation, with time, the higher O concentration is, the less M formation there will be.
On the other hand, N has no molecule that inhibits its production. So L turns to N formation, predominating this reaction.
The reaction that would prevail if both Q and S are present in the cell in high concentrations is L → N (Option c).
In a chemical reaction, a substrate is a molecule that reacts with a given enzyme to generate one or more products.In this case, L is the first substrate whose reaction produces N and M, while Q and S are the last products observed in this series of reactions.In turn, M acts as a substrate to form O as an intermediate, which subsequently serves as a substrate to form P and R.Finally, P serves as a substrate to form Q, while R serves as a substrate to form S.The series of chemical reactions are as follow:
L → N + M → O → P + R → Q + SIn this case, it is also important to remark that a given product of a chemical reaction can also inhibit the enzyme's activity (e.g., O is an intermediate that inhibits the formation of M).In consequence, the reaction that would prevail if both Q and S are present in the cell in high concentrations is L → N (Option c).
Learn more in:
https://brainly.com/question/1160198
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.
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.
when the community climax in an ecosystem has only a single type of climax, the development of the climax community is controlled by ___ of that region.
a) the climate
b) the life forms
c) the soil texture
d) the pioneer community
Answer:
A.
Explanation:
because the climax community is composed of species beat adopted to average conditions in that area
When the community climax in an ecosystem has only a single type of climax, the development of the climax community is controlled by the climate of that region. Option A is correct.
The climate of a region is the most important factor that controls the development of a climax community. The climate determines the temperature, precipitation, and other abiotic factors that influence the growth and survival of plants and animals.
In a region with a single type of climax community, the climate is relatively uniform and there is little variation in the abiotic factors. This means that the same species of plants and animals will be able to survive and thrive in the region, regardless of the specific location. The life forms, soil texture, and pioneer community can all influence the development of a climax community, but they are not as important as the climate. Option A is correct.
To know more about the Ecosystem, here
https://brainly.com/question/11014883
#SPJ2
Each clan will be isolating two different bacteria,Pseudomonas sp. and Bacillus sp., from the same soil sample. What two traits provide the basis of your Pseudomonas sp. enrichment strategy
Answer:
The former bacteria, Pseudomonas sp., has the ability to utilize benzoate as a source of carbon. Pseudomonas sp. can also migrate in the direction of areas with higher oxygen concentrations.Whereas the latter, Bacillus sp., does not possess these characteristics.
Explanation:
The two traits mentioned above will provide the basis upon which the strategy for enrichment can be made.
5 Points
Great Britain would have a much colder climate than it does if not for the
O A. polar easterlies
B. gulf stream
C. trade winds
D. jet stream
SUBMIT
Hello There!
Answer:
B. Gulf stream
Explanation:
Great Britain would have a much colder climate than it does if not for the gulf stream.
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.
Try to know more about autoclave :
https://brainly.com/question/30166874
#SPJ2
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.
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:
A medical term with a suffix usually describes a/an
Answer:
a condition, an action, or a relationship.
Explanation:
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.
The ___ cycle is not a nutrient cycle.
Answer:
water cycle
Explanation:
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 of these statements best explains why the rainfall in volcanic regions increases after a volcanic eruption?
The volcano releases particles which help form water droplets.
The volcano releases heat causing clouds to form.
The molten lava from the volcano helps form water droplets.
The increase in fertility of soil around the volcano helps produce rain.
Answer:
The volcano help releases particles which help rain to fall.
Explanation:
Volcano is a form of opening in the Earth crust that make particles that are warmer in it surronding such as magma, hot lava, volcanic ashes to escape from beneath it. Volcano happen as a result of magma rising above Earth surface making the bubbles to spring forth. There is rain, lightning and thunder during volcanic eruptions.
Rainfall near a volcanic region increases after volcanic eruptions because all the ash particles that rises to the atmosphere attract and collect water droplets, thereby causing abundant of rainfall wen the water droplets are released.
10. In the water cycle, liquid changes to gas by
O precipitation
O condensation
evaporation
O freezing
Answer:
evaporation
Explanation:
when the liquid heated for a long time it removes steam in form of gases
In the water cycle, liquid changes to gas by evaporation, which is in Option C. The water cycle, also known as the hydrological cycle, describes how water circulates through the Earth's ecosystems.
What is the water cycle?The water cycle involves a series of processes that include evaporation, condensation, precipitation, and infiltration. Evaporation is the process by which water changes from a liquid state to a gaseous state, such as water vapor. This occurs when energy (in the form of heat) is absorbed by the water, causing the water molecules to move faster and break free from their bonds to form a gas. After water evaporates, it can undergo condensation, which is the process by which water vapor changes back into liquid water.
Hence, in the water cycle, liquid changes to gas by evaporation, which is Option C.
Learn more about the water cycle here.
https://brainly.com/question/1151425?
#SPJ7
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.
Explain why detritivores, decomposers and omnivores are not assigned trophic level
Answer:
They can be found in several trophic levels, as they are related with several trophic level, hence, they cannot be placed on a specific trophic level.
Explanation:
A trophic level is a specific position occupied by a group of organisms on a good chain in relation to their nutrition.
Dentrivores feed on the waste of other organisms and cannot be really placed on a specific trophic level, likewise decomposers, of which they feed and decompose the body of organisms.
Omnivores feed on both plants and animals, which includes producers and consumers. Placing omnivores on a specific trophic level would not be really straightforward also.
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.
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:
what is a animal and what types of animals are there
Answer:
Animals are multicellular eukaryotic organisms that form the biological kingdom of Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development.
Explanation:
Scientists have recently estimated that there are approximately 8.7 million species on Earth. They believe that 1-2 million of those species are animals.