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goblinko [34]
3 years ago
11

Mendel discovered that whether his peas were yellow or green is determined by a single gene in which yellow (Y) is dominant over

green (y). Assuming low selective pressure, what does the Hardy-Weinberg Equilibrium frequency term 2pq represent in the peas?
Biology
1 answer:
Anvisha [2.4K]3 years ago
8 0

Answer:

Heterozygous, Yy

Explanation:

According to Hardy-Weinberg equilibrium, the allele frequencies remain constant in a population in absence of an evolutionary force like genetic drift or natural selection. Since here the population is under low selective pressure, it can be considered almost in Hardy-Weinberg equilibrium. According to it,

p + q = 1

p² + 2pq + q² = 1 where,

p = frequency of dominant allele = f(Y)

q = frequency of recessive allele = f(y)

p² = frequency of homozygous dominant genotype = f(YY)

2pq = frequency of heterozygous genotype = f(Yy)

q² = frequency of homozygous recessive genotype = f(yy)

Hence, the term 2pq represents the frequency of heterozygous Yy peas.

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What is the relationship between the cytoplasm and nucleus of a cell
Olegator [25]

Answer:

The nucleus is a cell's central organelle, which contains the cell's DNA (Figure 3.6). The cytoplasm is composed of two parts, the cytosol and organelles. Cytosol, the jelly-like substance within the cell, provides the fluid medium necessary for biochemical reactions.

Explanation:

6 0
3 years ago
How does the author communicate that the destruction of ash trees is similar to the destruct
Mrrafil [7]

Answer:

B

Because since they always kill the trees they invade by smothering them.

6 0
3 years ago
Most coastal areas on Earth experience two high tides and two low tides every lunar day. What is a lunar day? Our days on Earth
ahrayia [7]

The correct answer is - C) 5:35 PM Friday.

The low tides occur twice in a lunar day, thus they are diurnal. The low tides appear when the Moon is between that point of the planet and the opposite of that point of the planet, thus in between, which is happening twice, on opposite parts of the planet.

Since the lunar day lasts for 24 h 50 m, we should just divide it in two, thus get 12 h 25 m. Than we should add the 12 h 25 to the time when one of the low tides appeared, which is 5:10 AM, so we will get 5:35 PM.

The low tides appear because the Moon is pulling the water upwards with its gravitational pull above the place where it is, so the side parts of the planet have their waters dragged away,thus resulting in the retreating of the water, known as low tide.

3 0
2 years ago
Read 2 more answers
If the two traits that Mendel looked at in his dihybrid cross of smooth yellow peas with wrinkled green peas had been controlled
nalin [4]

Answer:

c. Would have deviated from the 9:3:3:1 phenotypic ratio

Explanation:

<em>If two genes are linked together on the same chromosome, the phenotype of the F2 generation would have deviated from 9:3:3:1.</em>

Two genes whose loci are close on the same chromosome are said to be linked. Linked genes have higher frequency of recombination than genes that are not linked.

<u>Hence, while genes that are not linked assort independently to produce 9:3:3:1 phenotypic ratio at F2, linked genes do not assort independently and the higher frequency of recombination ensures that they standard phenotypic ratio is deviated from.</u>

The correct option is c.

3 0
3 years ago
An enhancer may increase the frequency of transcription initiation for its associated gene when… (indicate true or false for eac
Olenka [21]

Answer:

it is located 1000 nucleotides upstream of the gene’s core promoter - true

it is located 1000 nucleotides downstream of the gene’s core promoter- true

it is in the gene’s coding region - False

Explanation:

These enhancers are located 50 or more kilobases from the promoter they controlled upstream from a promoter, downstream from a promoter within an intron, or even downstream from the <u>final exon</u> of a gene which can be thousands of bp away from the gene's core promoter and can also occur thousands of nucleotides away from the gene's core promoter needing the activity of a DNA -bending protein that binds to the enhancer changing the shape of the DNA and allow interactions between the activators and transcription factors.

4 0
3 years ago
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