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Serggg [28]
3 years ago
15

What are the frequencies of each offspring genotype in a cross between rr female and a rr male? see section 14.2 (page 293) . vi

ew available hint(s) what are the frequencies of each offspring genotype in a cross between rr female and a rr male? see section 14.2 (page 293) . ½ homozygous dominant and ½ heterozygous ½ homozygous dominant and ½ homozygous recessive all heterozygous all homozygous dominant?
Biology
1 answer:
Dmitriy789 [7]3 years ago
7 0

Answer:all homozygous dominant

Explanation: traits are known to be controlled by genes in the chromosomes.from mendels work a test cross between a homozygous rr male and a female would produce r gametes each,which when crossed produces a rr ofspring,which is homozygous for the trait

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What part of the female system is the usual site of fertilization of the ovulated oocyte?.
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Fertilization of the egg cell by the sperm usually takes place in the fallopian tube. The fertilized egg then travels to the uterus and implants in the endometrium.

<h3>What are fallopian tubes?</h3>
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8 0
1 year ago
In rabbits, black fur (B) is dominant to white fur (b). A purebred black furred male is bred with a female that had the recessiv
ValentinkaMS [17]

Answer:

All the offsprings will be black-furred (Bb)

Explanation:

This question involves a single gene coding for fur length in rabbits. The allele for black fur (B) is dominant to the allele for white fur (b). This means that a rabbit heterozygous for this gene (Bb) will have a black fur.

According to this question, a purebred black furred male (BB) is bred with a female that had the recessive white fur (bb). The parents will produce gametes as follows:

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bb - b only

Using these gametes in a punnet square (see attached image), the genotypic proportion of the produced offsprings is as follows:

Bb, Bb, Bb, Bb

All Bb (heterozygous) means that all of the offsprings will be black-furred.

8 0
3 years ago
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