Question
Science Question on Heredity and Evolution
A cross made between two pea plants produces 50% tall and 50% short pea plants. The gene combination of the parental pea plants must be
A
Tt and Tt
B
TT and Tt
C
Tt and tt
D
TT and tt
Answer
Tt and tt
Explanation
Solution
The cross between Tt (heterozygous tall) and tt (homozygous short) produces:
Tt (tall) : tt (short) = 1 : 1
50% of the offspring are tall, and 50% are short.