Question

For tall heterozygotes with antennae, the offspring are:
a. tall-antennae 46
b. dwarf-antennae 7
c. dwarf-no antennae 42
d. tall-no antennae 5

Calculate the recombination frequency between T and A. Enter your answer as a percentage (for example, 10%)

Answer 1

Recombinant frequency between T and A is 12%

Explanation:

Two characters are considered - height and antennae

Traits of height - Tall and Dwarf

Traits of antennae - Antennae and No antennae

Given:

Tall-antennae (46) and dwarf-no antennae (42) are the wild type.

Dwarf- antennae (7) and tall- no antennae (5) are the recombinants.

Total possibilities = 100

Recombinant frequency = $\frac{7}{100} + \frac{5}{100}$

Recombinant frequency = $\frac{12}{100}$

Recombinant frequency in percentage = $\frac{12}{100} X 100 = 12$%

Therefore, recombinant frequency between T and A is 12%