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Leokris [45]
2 years ago
12

In the model of DNA, the colored pegs represent the four nitrogen bases found in every DNA molecule. One possible correct labeli

ng suggestion could be
A) yellow - adenine; green - thymine; orange - guanine; blue - cytosine

B) yellow - adenine; green - guanine; orange - thymine; blue - cytosine.

C) yellow - adenine; green - cytosine; orange - thymine; blue - guanine.

D) yellow - cytosine; green - thymine; orange - adenine; blue - guanine
Biology
2 answers:
Semenov [28]2 years ago
5 0
The answer is D. This is because of the nitrogen compounds that are in it. 
pentagon [3]2 years ago
5 0
In the DNA, the colored pegs are the one that represents the four nitrogen bases namely; adenine, guanine, thymine and cytosine. They are found in each DNA molecule and the correct labellings are: yellow - adenine, green - guanine, orange - thymine, blue - cytosine.
So the correct answer in the following options is letter B.
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The mountains of the Sierra Nevada play a role in the formation of desert in eastern California and Nevada. What is this an exam
lana66690 [7]
I think that occurrence is an example of  : The lithosphere influences the atmosphere and biosphere

Rains happen when the water within the atmosphere brought out by the win and will eventually fall to the place where it came into

The thing is, These mountains often blocked the water-filled with air, causing it not able to reach the place behind the mountain, which will eventually became a desert
4 0
2 years ago
In Kerr and Wright's experiment with 96 fruit-fly populations, only 4 males and 4 females bred in each generation. After 16 gene
Svetradugi [14.3K]

Answer:

2.Less than 73% of the populations would have only one allele present.

Explanation:

The two alleles chosen do not affect the fitness of flies in the lab environment, so Kerr and Wright could be confident that if changes in the frequency of normal and forked phenotypes occurred, they would not be due to natural selection.

Using a larger breeding population would not be expected to alter the outcome of the experiment.

3 0
2 years ago
If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited?
Len [333]

Answer:

d) passage of a solute against its concentration gradient

Explanation:

When a solute is transported against its concentration gradient, the cells use metabolic energy. To move a substance from the region of its lower concentration to that of its higher concentration, the energy of ATP hydrolysis is utilized. These types of transport mechanisms are called active transports. If ATP hydrolysis is inhibited in a cell, it would not be able to perform the uphill movement of solutes due to the lack of any source of energy to drive the process.

6 0
2 years ago
1. Walking through the forest, you find a large population of toadstools. From your extensive knowledge of the kingdom fungi, yo
Lena [83]

Answer:

No, observed and expected frequencies are different.

Observed frequencies: p2 = 0.56 , 2pq = 0.375, q2 = 0.062

Expected frequencies: p2 = 0.774 , 2pq = 0.211, q2 = 0.014

Explanation:

Given frequency of recessive genotype (q2)= 14/ 1006 = 0.0139

Frequency of recessive allele s (q) = square root of 0.0139 = 0.12

Frequency of dominant allele S (p) = 1-q = 1-0.12 = 0.88

Expected frequency of homozygous recessive genotype = 0.12 x 0.12 = 0.014

Expected frequency of homozygous dominant genotype = 0.88 x 0.88 = 0.774

Expected frequency of heterozygous dominant genotype = 2pq = 2 x 0.88 x 0.12 = 0.211

Observed frequencies in population 2

Observed frequency of homozygous dominant genotype = 308 / 549 =0.56

Observed frequency of heterozygous dominant genotype = 206 / 549 =0.375

Observed frequency of homozygous recessive genotype = 34 / 549 =0.062

Observed frequencies do not match with expected frequencies.

6 0
2 years ago
Study this unusual food chain. What could ‘P’ represent?
ANEK [815]
Since it is getting a source of energy from the sun, it has to be a type of producer. The answer is most likely Option C. This is a plant and a producer.
3 0
1 year ago
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