Question

In pea plants, short plants are recessive to tall plants. Cross two homozygous recessive individuals (tt).

Answer 1

Crossing two homozygous recessive pea plants (tt) will result in all offspring being homozygous recessive (tt) and displaying the short or dwarf phenotype.

Step-by-step explanation:

When you cross two homozygous recessive pea plants (tt x tt), genetics predicts that all offspring would be homozygous recessive as well. In this particular example, both parents contribute a recessive allele (t), meaning each offspring will have the genotype tt, which results in the short (dwarf) phenotype since short plants are recessive in pea plants. It's important to note that in these pea plant crosses, dominant and recessive traits are signified by capital and lowercase letters, respectively. The phenotype of a pea plant that is homozygous recessive (tt) is a short or dwarf pea plant.

Answer 2

100% probability -- homozygous tt (genotype), short (phenotype)

Step-by-step explanation:

If you cross two homozygous recessive individuals, the probability that their offspring's genotype is tt is 100%; this corresponds to a 100% probability of a short pea plant since short plants are recessive to tall plants. The question can be modeled by a 2x2 Punnett square labeled tt x tt.