Answers
Related Questions
In a DNA molecule, G pairs with __
Answers
Answer:
cytosine
Explanation:
Guanine is one of the building blocks of DNA. It's the G in the A, C, G, or T. Guanine in the double helix pairs with cytosine, so you will see CG pairs; one on one strand and one on the other.
Answer:
In a DNA molecule, G pairs with C
Explanation:
Wish you luck! Have a good day~
Please answer the three questions. ☺️
d) Out of the 16 possible outcomes, how many have to yellow leaves?
e) Out of the 16 possible outcomes, how many have green leaves?
f)Out of the 16 possible outcomes, how many have green leaves and rough
seeds?
Answers
Answer:
12 out of 16 have yellow leaves
4 out of 16 have green leaves
1 out of 16 has green leaves and rough seeds
Explanation:
<3
The answer to the three questions is as follows:
Out of the 16 possible outcomes, 12 of them have to possess yellow leaves. Out of the 16 possible outcomes, 4 of them have to possess green leaves. Out of the 16 possible outcomes, only one has green leaves and rough seeds. What is a Dihybrid cross?A dihybrid cross may be characterized as a type of cross that significantly takes place between two individuals with two observed traits that are controlled by two distinct genes. It is a breeding experiment between two organisms that are identical hybrids for two traits.
According to the context of this question, the allele Y encodes for yellow color leaves, and y codes for green color leave. Yellow is dominant over the green. Similarly, S encodes for smooth leaves while s codes for rough seeds. Smooth is dominant over rough.
yyss is the only genotype that has a green and rough phenotype. While the possibilities that have yy in their genotypes must possess a green phenotype.
To learn more about Dihybrid cross, refer to the link:
https://brainly.com/question/12540319
#SPJ2
How many amino acids are there in A peptide, B peptide and C peptide in human insulin???
Answers
Answer:
Insulin is composed of an A chain of 21 amino acids and a B chain of 30 amino acids. C-peptide is a peptide composed of 31 amino acids
Explanation:
Insulin is composed of an A chain of 21 amino acids and a B chain of 30 amino acids, the chains being held together by two disulfide bonds. A third disulfide bond is present within the A chain. Human insulin differs from porcine insulin by a single amino acid and from beef insulin by three amino acids.
Explanation:
Dashed circles around either an R or K indicate sites of peptidase cleavage that result in generation of the mature insulin that is comprised by two separate peptides: the A chain with 21 and the B chain with 30 amino acids. A third C peptide with 21 amino acids served as a linker between the A and B chains.
helppppppppppp meeeeeeee
Answers
Consider a plant with the following characteristics. Round leaves (R) are dominant to pointed leaves (r). White flowers (W) are dominant to pink flowers (w). Plants heterozygous for both traits are crossed. What is the probability of obtaining a plant with pointed leaves and pink flowers
Answers
Answer:
.0625 or 6.25%
Explanation:
Find the probability for the plant to have pointed leaves. If the two parent plants are heterzygous, then the likelihood the plant has a recessive characteristic is 25%, 1/4, or .25 for our calculations.Find the probability for the plant to be pink. If the two parent plants are heterzygous, the likelihood the plant has another recessive characterisitc is again 25%, 1/4, or .25 for our calculations.Multiply them together. (1/4)*(1/4)=(1/16) or .0625, or 6.25%One of the following is not a function of proteins:
Select one:
a. Catalysis as Enzymes
b. Transport of proteins
c. Protection as antibodies
d. Regulation of hormones
Answers
Answer for 10 points!
Answers
Answer:
I think the answer is D
Explanation:
Hope that helps!
The kingdom Eubacteria is so called as they have a "True" nucleus.
True
False
Answers
What is the relationship between recombination frequency and location of genes on a chromosome?
Answers
Answer:
hi
Explanation:
Distinguish between herbaceous and woody stems
Answers
Answer: herbaceous plants are plants with very flexible stems. Their leaves and stems die down to soil level at the end of every growing season amd woody plants are plants with very strong and not easily bendable stems such as trees. Woody plants produce wood as a structural tissue
Each of the following statements describes a step in the replication of SARS-CoV-2. These steps are listed in random order. Read through the steps and, in the spaces provided below, list them in the order they occur in the human body.
- The virus releases its RNA genome into the cell.
- Viral RNA polymerase helps transcribe more copies of the virus’s RNA.
- The virus binds to a receptor on a human cell’s membrane.
- New viruses travel to the cell membrane of the infected cell and are released outside the cell.
- The virus’s RNA is translated into proteins by the cell’s ribosomes.
Answers
Answer:
- The virus binds to a receptor on a human cell’s membrane.
- The virus releases its RNA genome into the cell.
- The virus’s RNA is translated into proteins by the cell’s ribosomes.
- Viral RNA polymerase helps transcribe more copies of the virus’s RNA.
- New viruses travel to the cell membrane of the infected cell and are released outside the cell.
Explanation:
Coronaviruses are viruses from the family Coronaviridae (Order Nidovirales), which are structurally composed of positive-sense single-stranded RNA (ssRNA) genomes with a size of approximately 25 to 33 kilobases. Since the coronavirus genome consists of an ssRNA, they can be directly translated into protein inside infected host cells. The coronavirus that has caused the recent pandemic can enter into host cells through its spike (S) glycoprotein which binds to the Angiotensin-converting enzyme 2 (ACE2) receptor. Subsequently, this virus exploits the host molecular machinery to encode an RNA polymerase which is used to generate RNA from an RNA template. Finally, these RNAs are translated into all viral components (structural proteins) and new viruses are recruited to infected cells.
Consider a cross between a plant with two flower colors, yellow and red. Yellow (Y) exhibits complete dominance over red (y). It also has either single blossoms or double blossoms, single blossoms (S) exhibit complete dominance over double blossoms (s). A dihybrid yellow, single blossomed flower is crossed with a red flowered and double blossomed plant. You observe the following phenotype frequencies among the 1545 offspring plants:
500 yellow flowers and single blossom plants
515 red flowers and double blossom plants
260 yellow flowers and double blossom plants 270 red flower and single blossom plants.
What is the recombination frequency between these two genes?
a. (260+270) 1545
b. 270/1545
c. 1545/ (260+270)
d. 260/1545
e. (500+515)/1545
f. 1545/260
g. 1545/270
From these results one can conclude that:_______.
a. the two genes are linked
b. the two genes are not linked
c. if the genes are linked, they are separated far enough apart to appear to assort independently
Answers
Answer:
1) option a is correct. (260+270)/1545
(Note about this option: In the statement, it is written as (260+270) 1545. Lacks the division symbol, / )
2) From these results one can conclude that the two genes are linked (option a)
Explanation:
To know if two genes are linked, we must observe the progeny distribution. If heterozygous individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, phenotypes appearing in different proportions, we can assume linked genes in the double heterozygote parent.
We might verify which are the recombinant gametes produced by the di-hybrid, and we will be able to recognize them by looking at the phenotypes with lower frequencies in the progeny. Phenotypes with the highest frequencies represent the parental gametes.
To calculate the recombination frequency, we will use the following formula: P = Recombinant number / Total of individuals.
In the present example:
Parental) YySs x yyss
Gametes) YS parental type ys, ys, ys, ys
ys parental type
Ys recombinant type
yS recombinante type
The total number of individuals in the offspring: 1545
Phenotypic class Number of offspring
500 Y-S- (parental)515 yyss (parental)260 Y-ss (recombinant)270 yyS- (recombinant)According to this information, the phenotypic frequencies of the progeny differ from the phenotypic ratio 1:1:1:1. We can assume then, that these genes are linked.
The recombination frequency is:
P = Recombinant number / Total of individuals
P = 260 + 270 / 1545
P = 530/1545
P = 0.343
The genetic distance between genes is 0.343 x 100= 34.4 MU.
Complete the following statement from what you have learned about the motor unit. In some neurodegenerative diseases the lower motor neuron cell bodies die and the remaining lower motor neurons sprout processes that innervate the neuromuscular synapses vacated by the dead lower motor neurons. In these muscles, the size of the motor unit ____________ and the strength of the muscle contraction generated by individually activating each surviving motor neuron _________.
Answers
Answer:
The correct answer is - increase, increase.
Explanation:
In some neurodegenerative diseases, some lower motor neuron cells die and the remaining lower motor neurons continuing the process of the vacated dead motor neuron cells to innervate the neuron and muscle synapses.
The size of the motor unit increases and due to the innervations of the new axon
increases the strength of the muscle contraction occurred by individually activating each surviving motor neuron. Here multiple motor units will be controlled by a single neuron.
Which of the following is an example of a learned response? OA A child figures out how to ride a bicycle. O B. An adult salmon is able to return to the river where it hatched. OC. A plant turns to follow the sun during the day. OD. A man blinks when an object is tossed toward his face.
Answers
Answer:
Explanation:
I would say A. Learning to ride a bicycle is a process of getting on and falling off. You have no idea how to do it properly without practice. That's learned.
But look out for D. I'm not sure that that isn't instinctive. Somewhere along the line I think even a baby knows not to let his/her eyes be touched. Is it learned? It's close but A is a much better answer.
The salmon is instinctive. The plant doesn't learn to turn towards the sun. It does so because more food is produced.
Yes, it's A.
A is the only option that is not instinctual. Riding a bicycle is something that has to be taught (and even if you weren't taught to ride a bike, you had to figure it out by trial and error.)
The other options are instinctual and reflexive responses. The salmon returning to the river is a behavior that is pretty much hard-wired into the salmon's brain. The plant turns to follow the sun because it is a source of light and energy.
The other user expressed uncertainty as to option D, but in fact, option D is very much a reflexive, instinctual response as well. To flinch or blink when something abruptly moves towards you is not a choice or something you have to be taught — it's a reflex, something you can't control.
0.3 kilogram golf ball moving at 45 meters/second equals
Answers
Answer:
F = 13.5 N
Explanation:
Put these statements in correct order to understand how hearing works. - Ions enter hair cells - Stapes moves - auditory cortex recognizes the sounds - hair cells bend - Incus moves - auditory nerve transmits the signal to the auditory cortex - Fluid wave moves across Organ of corti based on frequency - Sound wave enters inner ear - Fluid in the cochlea moves - sound wave is generated from hitting a key on a piano
Answers
Answer: From the question,the correct order of how hearing works is listed below:
--> sound wave is generated from hitting a key on a piano,
--> Incus moves,
--> Stapes moves,
--> Sound wave enters inner ear,
--> Fluid in the cochlea moves,
--> Fluid wave moves across Organ of corti based on frequency,
--> Ions enter hair cells,
--> hair cells bend,
--> auditory nerve transmits the signal to the auditory cortex,
--> auditory cortex recognizes the sounds.
Explanation:
In mammal, two ears are present on each side of the head. It is know as the organ for hearing and balance. The ear is divided into three regions:
--> OUTER EAR: This consists of pinna, ear canal, and eardrum( tympanic membrane)
--> MIDDLE EAR: This consists of the ear ossicles ( malleus, incus and stapes).
--> INNER EAR: This consists of Cochlea (organ of hearing) and semicircular canals (for balance).
To explain further on how we hear sounds, the vibrations of sounds produced from an external source move from the outer ear to the middle and then to the inner ear where the cochlea, the organ for hearing is located.
As sound wave is generated from hitting a key on a piano, the pinna collects the sound waves and directs them into the ear canal. Sound waves impinge on the tympanic membrane and makes it vibrate. This causes the malleus, incus and stapes (in this order) to move to-and -fro at the middle ear region.
In the inner ear region, sound wave enters inner ear as stapes pushes the oval window in-and-out. The vibrating oval window causes the fluid in the cochlea( perilymph) to move to-and -fro. Fluid wave moves across Organ of corti based on frequency. The pressure waves in the perilymph push the membrane separating the upper canal and the cochlear duct to-and-fro allowing ions to enter the hair cells. As a result, the hairs of the sensory cells between these two membranes bend causing nerve impulses to be sent to the brain through the cochlear part of the auditory nerve. Auditory nerve transmits the signal to the auditory cortex which recognizes the sounds.
2. Write a word equation for the process of photosynthesis.
3. Why do plants test positive for starch?
Answers
Glucose is stored by plants as starch, which plants use as food, the presence of starch in a leaf is evidence of photosynthesis, because starch formation requires photosynthesis.
Select ALL the correct answers.
A pitcher for a professional baseball team allows runs in the first nine games he starts this season. Let A be the set of the number of
runs allowed by the pitcher in his first nine starts.
A = {1, 4, 2, 2, 3, 1, 1, 2, 1}
In the tenth game he starts, he allows 9 runs. Let B represent the set of the number of runs allowed in all ten games he has started.
Select the true statements.
The median of B is 1 run more than the median of A.
The interquartile range of B is greater than the interquartile range of A.
The interquartile range of A is 1 less than the interquartile range of B.
The median of A is the same as the median of B.
Including the runs allowed in the tenth game does not cause the spread of the data to
change.
Answers
Answer:
(b) The interquartile range of B is greater than the interquartile range of A.
(d) The median of A is the same as the median of B.
Explanation:
Given
[tex]A = \{1, 4, 2, 2, 3, 1, 1, 2, 1\}[/tex]
[tex]10th\ run = 9[/tex]
So:
[tex]B = \{1, 4, 2, 2, 3, 1, 1, 2, 1,9\}[/tex]
Required
Select all true statements
(a) & (d) Median Comparisons
[tex]A = \{1, 4, 2, 2, 3, 1, 1, 2, 1\}[/tex] [tex]B = \{1, 4, 2, 2, 3, 1, 1, 2, 1,9\}[/tex]
[tex]n = 9[/tex] [tex]n = 10[/tex]
Arrange the data:
[tex]A = \{1, 1, 1, 1, 2, 2, 2,3, 4\}[/tex] [tex]B = \{1,1,1,1,2,2,2,3,4,9\}[/tex]
[tex]Median = \frac{n + 1}{2}th[/tex]
[tex]Median = \frac{9 + 1}{2}th[/tex] [tex]Median = \frac{10 + 1}{2}th[/tex]
[tex]Median = \frac{10}{2}th[/tex] [tex]Median = \frac{11}{2}th[/tex]
[tex]Median = 5th[/tex] [tex]Median = 5.5}th[/tex] --- average of 5th and 6th
[tex]Median = 2[/tex] [tex]Median = \frac{2+2}{2} = 2[/tex]
Option (d) is correct because both have a median of: 2
(b) & (c) Interquartile Range Comparisons
[tex]A = \{1, 1, 1, 1, 2, 2, 2,3, 4\}[/tex] [tex]B = \{1,1,1,1,2,2,2,3,4,9\}[/tex]
[tex]n = 9[/tex] [tex]n = 10[/tex]
First, calculate the lower quartile (Q1)
[tex]Q_1 = \frac{n + 1}{4}th[/tex][Odd n] [tex]Q_1 = \frac{n}{4}th[/tex] [Even n]
[tex]Q_1 = \frac{9 + 1}{4}th[/tex] [tex]Q_1 = \frac{10}{4}th[/tex]
[tex]Q_1 = \frac{10}{4}th[/tex] [tex]Q_1 = 2.5[/tex]
[tex]Q_1 = 2.5th[/tex]
This means that:
[tex]Q_1 = 2nd + 0.5(3rd - 2nd)[/tex] [tex]Q_1 = 2nd + 0.5(3rd - 2nd)[/tex]
[tex]Q_1 = 1 + 0.5(1- 1)[/tex] [tex]Q_1 = 1+ 0.5(1 - 1)[/tex]
[tex]Q_1 = 1[/tex] [tex]Q_1 = 1[/tex]
Next, calculate the upper quartile (Q3)
[tex]Q_3 = \frac{3}{4}(n + 1)th[/tex] [Odd n] [tex]Q_3 = \frac{3}{4}(n)th[/tex] [Even n]
[tex]Q_3 = \frac{3}{4}(9 + 1)th[/tex] [tex]Q_3 = \frac{30}{4}th[/tex]
[tex]Q_3 = \frac{30}{4}th[/tex] [tex]Q_3 = 7.5th[/tex]
[tex]Q_3 = 7.5th[/tex]
This means that:
[tex]Q_3 = 7th + 0.5(8th- 7th)[/tex] [tex]Q_3 = 7th + 0.5(8th- 7th)[/tex]
[tex]Q_3 = 2 + 0.5(3- 2)[/tex] [tex]Q_3 = 2+ 0.5(4 - 2)[/tex]
[tex]Q_3 = 2.5[/tex] [tex]Q_3 = 3[/tex]
The interquartile range is [tex]IQR = Q_3 - Q_1[/tex]
So, we have:
[tex]IQR = 2.5 - 1[/tex] [tex]IQR = 3 - 1[/tex]
[tex]IQR = 1.5[/tex] [tex]IQR =2[/tex]
(b) is true because B has a greater IQR than A
(e) This is false because some spread measures (which include quartiles and the interquartile range) changed when the 10th data is included.
The upper quartile and the interquartile range of A and B are not equal
why do we commonly see isotherms on local weather broadcasts?
Answers
Explanation:
Isotherms are lines of constant or equal temperature. They are often used on weather maps by meteorologists to give a large scale view of temperatures across the U.S. If you have ever looked at a weather map in a newspaper, the isotherms are used to divide the color-filled temperatures.
1. How do plants get the raw materials for photosynthesis?
Answers
Answer:
they absorb water and minerals from the soil and use the energy of the sun to synthesize sugars (carbohydrates)
A group of students were asked to study and record the movement of amoeba to try and determine how they move. The group knew that they must plan this descriptive investigation carefully, including the selection of the appropriate technology needed to observed these single-celled organisms. Which type of microscope would be most appropriate for this investigation? A) Compound Light Microscope B) Scanning Electron Microscope (SEM) Stereo Microscope (Dissecting Scope) D Transmission Electron Microscope (TEM)
Answers
Answer:
A. Compound Light Microscope
Explanation:
USA TestPrep
Answer:
coumpound light microscope
Explanation:
WILL GIVE BRAINLIEST
mutualism relates to which of the following relationships?
A. Both organisms benefit
B. One organism benefits; the other is harmed
C. Both organisms are harmed
D. Neither organisms benefit or is harmed
Answers
Answer:
A. Both organisms benefit
Explanation:
What is better for a beginners pet leopard gecko or crested gecko
Answers
Answer:
leopard gecko
Explanation:
Answer:
you chose based off what i type
Explanation:
crested geckos need a vivarium and a uvb light but turn it off at night cause they are nocturnal they need stuff to climb on a hide and a clean cage the eat a powder mixed with water and crickets you can give them other bugs to they can jump from your hand to your arm if they want to they will drop there tail if scared they do not grow back also super cute
leopard geckos need a 20 gallon or bigger terrarium with uvb to turn off at night and a heat pad 24\7 make sure its no to hot leopard geckos need a variety of bugs like crickets and bubia roaches and other and a clean tank and at least 2 hides they will drop there tail but they do grow back they just look a little different but are super cute
What can you tell about bacteria that have been Gram stained?
A) Microscopic morphology
B) Macroscopic morphology
C) Gram reaction
D) A and C
Answers
Answer:
D) A and C
Explanation:
Gram staining is a laboratory technique used for bacterial species. It is used to differentiate between two groups of bacteria based on the components of their cell wall. Gram staining was developed by a scientist called Christian Gram in the year 1884. In the gram stain procedure, the following occurs:
- Due to the thick peptidoglycan component of their cell wall, GRAM POSITIVE bacteria retains the crystal violet due and stain VIOLET.
- On the contrary, due to the thin peptidoglycan component of their cell wall, GRAM NEGATIVE bacteria do not retain the crystal violet dye and hence stain, RED.
Based on this, a bacteria that has been gram stained has been tested for its GRAM REACTION and microscopic morphological characteristics, since it is a microbe.
Write a scientific explanation to explain how natural selection and adaptation increase or decreases the chances of survival for the mice if they entered one another’s environment.
Answers
Answer:
Natural selection is a factor of biological evolution, by means of which individuals who possess a certain characteristic tend to prevail over those who lack such characteristic. Thus, by reproducing, individuals with favorable characteristics end up imposing their own set of characteristics, taking control of the environment in which they develop and relegating other individuals or condemning them to their extinction or displacement.
Thus, in the case, if some mice entered the environment of others, most likely they would not be able to adapt to the conditions to which the original group of that environment had previously adapted. In this way, natural selection itself would make the new mice end up disappearing from it, in favor of the mice that already lived there and that, therefore, had adapted their characteristics to those of the environment.
In the laboratory, a genetics student crossed flies with normal, long wings to flies with mutant, dumpy wings, which she believed was a recessive trait. In the F1, all flies had long wings. In the F2, the following results were obtained: 672 long-winged flies 218 dumpy-winged flies The student tested the hypothesis that the dumpy wing is inherited as a recessive trait by performing chi-square analysis of the F2 data.
Determine:
a. Chi-Square Value.
b. Degrees of freedom.
c. Reject or fail to reject the hypothesis.
Answers
Answer:
a. Chi-Square Value = 0.12
b. Degrees of freedom = 1
c. Reject or fail to reject the hypothesis = fail to reject the hypothesis
Explanation:
Available data:
Cross: long wings to flies with mutant, dumpy wingsF1) 100% long-winged fliesF2) 672 long-winged flies 218 dumpy-winged flies Hypothesis: the dumpy wing is inherited as a recessive traitLet us name the allele for Long L and the allele for dumpy l
The number of observed individuals:
Total number: 890 flies (672 + 218) Long-winged = 672 Dump-winged = 218In the F2 generation, if l was a recessive allele and L a dominant allele, exhibiting complete dominance, we would expect a 3:1 phenotypic ratio.
Cross: Ll x Ll
Gametes) L l L l
Punnett square) L l
L LL Ll
l lL ll
F2) 3/4 LL + Ll long-winged individuals
1/4 ll dump-winged individuals
From this ratio and the total number of individuals in the F2 generation, we can get the expected number of individuals:
4 possible genotypes ------- 890 individuals
3 LL + Ll genotype ------------X = 667.5 long-winged individuals
1 ll genotype ---------------------X = 222.5 dump-winged individuals
Chi square = ∑ (O-E)²/E
LL + Ll = (O-E)² /E
LL+ Ll = (672 - 667.5) ² / 667.5
LL + Ll = 0.03
ll= (O-E)²/E
ll= (218 - 222.5)² / 222.5
ll= 0.09
Chi square= ∑ ((O-E)²/E) = 0.03 + 0.09 = 0.12 Freedom Degrees = genotypes - alleles = 3 - 2 = 1 Significance level = 0.05 Table value/Critical value = 3.84
0.12 < 3.84 meaning that there is enough evidence to reject the null hypothesis.
Fail to reject the hypothesis. The genotypes in the population might be in equilibrium H-W. L is the dominant allele, and l is the recessive allele. The dumpy wing is inherited as a recessive trait.
help l m a o ........
Answers
Answer:
D
Explanation:
LKM iF i AM CORRECT
Ask a question about your assignment Explain what are shared characteristics of transcription to translation and what are their differences. Explain what their function is in each cell and their importance to the body.
Answers
Explanation:
perform the following the rhythm patterns using the given legend use any kind of membranophones pearl shoes us
What is the official language of Peru?
Portuguese
Spanish
Dutch
English
Answers
Answer:
Spanish
Explanation:
modern scientific explanations of evolution
a. have replaced darwin’s thinking
b. combine the principles of natural selection and genetic inheritance
c. rely on genetics instead of natural selection
d. fail to explain how traits are inherited