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Irina18 [472]
3 years ago
8

In pigeons, the allele B produces blue feathers. The allele W produces white feathers. The B and W alleles are codominant. A blu

e and white pigeon BW is crossed with a solid white pigeon WW. What percent of the offspring are expected to be blue and white?
Biology
1 answer:
Paha777 [63]3 years ago
7 0

Answer:

The correct answer is - 50%.

Explanation:

Codominance is a type of inheritance that takes place when the genotype of an individual organism in heterozygous condition express traits of both alleles.

Cross between blue and white pigeon and pure white:

BW × WW and gametes will be B and W and W and W

     B         W

W   BW     WW

W    BW     WW

There are 50% of BW that is blue and white pigeons

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Which of these statements about the human sense of touch is NOT true?
Sladkaya [172]

Answer:

The correct answer is There are very few receptors on the soles of a person's feet.

Explanation:

The skin is made up of a layer called the epidermis. The epidermis contains cells that are very sensitive and are responsible for perceiving everything we touch by sending this information to the brain.

All the nerve endings that our body has are in charge of controlling the sense of touch.

All the sensations that we perceive when touching something with any part of the body are linked to the sense of touch.

The most sensitive places on our body are palms, lips, tongue, soles of the feet, fingertips, eyelids and face.

Therefore the correct answer is There are very few receptors on the soles of a person's feet.

8 0
3 years ago
Assume a population of purple and white flower pea plants (2000 total plants) is in Hardy-Weinberg equilibrium. The frequency of
lys-0071 [83]

Answer:

a) 0.48

b)

p= 0.4\\q=0.6

c) 720

Explanation:

Given ,

Frequency of white flower plant (p^2) is 0.16

Thus, frequency of dominant white allele (p) is equal to \sqrt{0.16} \\= 0.4

As we that, as per  Hardy-Weinberg equilibrium equation

p+q=1

Substituting the value of p in above equation, we get

0.4+q=1\\q=1-0.4\\q=0.6

a) As per Hardy-Weinberg equilibrium equation

p^2+q^2+2pq=1\\

Substituting the given and calculated values in above equation, we get -

0.4^2+0.6^2+2pq=1\\0.16+0.36+2pq=1\\2pq=1-0.16-0.36\\2pq=0.48

b) The frequency (decimal form) of the dominant allele

p= 0.4\\q=0.6

c) number of homozygous purple flower plants

= frequency of purple flower plants (q^2) * Number of flowers

= q^2 * 2000\\= (0.6^2)*2000\\= 0.36 * 2000\\= 720

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Explanation:

The answer is mujko nahi pata

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as a result of ach stimulation, calcium ions are released from the ______ of the sarcoplasmic reticulum.
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Answer:

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Explanation:

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