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What percentage of the dna in the f1 hybrids

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What percentage of the DNA in the F1 hybrids' chromosomes comes from each parent species?

a. 100%% of the DNA in both homologs is from one parent species, and the other parent species does not provide any DNA

b. The percentage of the DNA in the F1 chromosomes from each parent species cannot be counted.

c. 100% of the DNA in one homolog is from one parent species, and 100% of the DNA in the other homolog is from the other parent species.

The hybrids mate and produce F2 and later-generation hybrid offspring. How may recombination and natural selection affect whether the DNA in hybrid chromosomes is derived from one parent species or the other?

a. Genetic recombination will produce chromosomes that contain 50% of DNA from each parent species. Natural selection will favor the DNA of the parental alleles that have fewer mutations and mistakes.

b. Genetic recombination will produce chromosomes that contain a mixture of the DNA from each parent species. At one genetic locus, natural selection may favor the DNA from one parent species, while at another locus, selection may favor the DNA from the other parent species.

c. Genetic recombination will produce chromosomes that contain 50% of the DNA from each parent species. At one genetic locus, natural selection may favor the DNA from one parent species, while at another locus, selection may favor the DNA from the other parent species.

Please explain the answer of these problem.

Reference no: EM132779976

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