Question

When a homozygous tall pea plant is crossed with the heterozygous tall plant. What will be the phenotypic ratio of progeny (according to normal Mendelian inheritance) (1) 50% tall, 50% Dwarf (2) 25% tall, 75% Dwarf (3) 100% tall (4) 75% tall, 25% Dwarf

Answer 1

When a homozygous tall pea plant (TT) is crossed with a heterozygous tall plant (Tt), all offspring will be tall. The correct answer is (3) 100% tall.

Step-by-step explanation:

The question relates to Mendelian inheritance in the field of biology. In this specific case, a homozygous tall pea plant (TT) is being crossed with a heterozygous tall plant (Tt). A homozygous tall plant has two dominant tall alleles (TT), while a heterozygous tall plant has one tall allele (T) and one dwarf allele (t).

According to Mendel's laws, in the resulting offspring:

• Tt (tall, from one dominant allele and one recessive from the heterozygous parent)
• TT (tall, from one dominant allele from each parent)

So in simple terms, we will have 100% tall progeny - hence the correct answer would be (3) 100% tall.

Learn more about Mendelian inheritance