Mice can have BLACK (F) or WHITE (f) fur color. Mice can also have BLACK (E) or
RED (e) eye colors.

1- What is the heterozygous genotype for black fur?

2- What is the homozygous genotype for red eyes?

3- What is the homozygous genotype for black fur?

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The heterozygous genotype for black fur is Ff.

The homozygous genotype for red eyes is ee.

The homozygous genotype for black fur is FF

Explanation: Heterozygous genotype means having a pair of gene containing one dominant allele and one recessive allele. There a heterozygous genotype for black fur will have one allele for black fur (F) and one allele for white fur (f) = (Ff)

A homozygous genotype is a pair of gene containing two identical alleles: either two dominant alleles or two recessive alleles. A homozygous genotype for red eyes will contain two recessive alleles for red eye (e) = (ee).

A homozygous genotype for black fur will contain two dominant alleles for black fur (F) = (FF).

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