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Marysya12 [62]
3 years ago
10

How can dominant-lethal alleles be passed down? (Choose the BEST answer!) a. They can’t, as they are lethal.b. They can be passe

d down if the individual with the lethal mutation lives to reproductive age and has a child. c. Dominant-lethal alleles occur solely through spontaneous mutations, they are not passed down through generations.d. They can be passed down if the individual freezes their eggs or sperm to allow a child to be born with their genetics, even after they pass.
Biology
1 answer:
Andreyy893 years ago
8 0

Answer: b

Explanation:

Dominant lethal alleles can be passed down if the individual can live to a reproductive age. The individual can then have children and can possibly pass down the lethal allele

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7 0
3 years ago
Suppose the human trait for hair type is controlled by a simple dominant and recessive relationship at one locus. Curly hair, C,
myrzilka [38]

Answer:

A) The frequency of the dominant allele, C = 0.4376

B) frequency of the heterozygous genotype, Cc = 0.2461

Explanation:

Given -

Curly hair, C, is the dominant allele, and straight hair, c, is the recessive allele

Number of students with curly hair is 37

Thus frequency of genotype "CC"

= q^{2} = \frac{37}{117} \\= 0.3162

Thus, frequency of allele "q"

= \sqrt{0.3162} \\= 0.5623

As per Hardy Weinberg's first  equation-

p+q=1

Substituting the value of q, we get -

p+0.5623=1\\p= 0.4376

As per Hardy Weinberg's second equation -

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

Substituting the values of "p" and "q" we get -

0.4376^{2} + 0.3162+2pq = 1\\2pq = 0.2461\\

Hence,

A) The frequency of the dominant allele, C = 0.4376

B) frequency of the heterozygous genotype, Cc = 0.2461

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3 years ago
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<h2>GAC</h2><h3>I'm assuming you're talking about DNA base pairs?</h3>
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