Question

With the following crosses of pea plants, give the flower color of offspring and the ratio expected (red is dominant).. . A cross of red x red (both homozygous) would result in. A] All red . B] 1 red, 3 white . C] 3 red, 1 white . D] 2 red, 2 white

Answer 1

The answer is a), all red, as no white alleles are present in the parents, [ and hence cannot be passed on to the offspring. Showing work- Let R represent the dominant (red) allele: RR(male) x RR(female) ----> All RR offspring.

Answer 2

The genetic cross of red x red (both homo-zygous genotypes) would result in all red individuals (Option A).

What is genetic dominance?

Genetic dominance is a phenomenon in which one allele known as dominant masks the recessive allele in heterozygous individuals.

In this case, parents are homo-zygous for the same trait and therefore will produce offspring having the same trait.

In conclusion, the genetic cross of red x red (both homo-zygous genotypes) would result in all red individuals (Option A).

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