3. Jenny crosses 2 hybrid pea plants. What is the probability that the offspring will be
2 answers:
Answer:
Twenty five percent
Explanation:
Let us assume that the allele for tall pea plant be "T" and the allele for short pea plant be "t".
Also let us assume that "T" is dominant over "t"
A hybrid pea plant will have both the allele for tall and short plants.
Thus, genotype of hybrid pea plant would be "Tt"
Now if two hybrid pea plants are crossed, then following offspring are formed -
Tt * Tt
TT, Tt, Tt, tt
Thus, out of four only one offspring having "tt" genotype will produce short pea plants.
Thus, probability is equal to
%
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