Question

Write the types of sex-determination mechanisms the following crosses show. Give anexample of each type.
(i) Female XX with Male XO
(ii) Female ZW with MaleZZ

Answer 1

Answer:

female xx with male xo sknxvhskdbbdkksvbskk

Answer 2

Answer:

Sex determination mechanism are given below

Explanation:

Sex determination is also called determination of gender in animals, three types based on time are as follows-

1. Progamic sex determination
2. Syngamic sex determination
3. Epigamic sex determination or Environmental sex determination

(i) Female XX with male XO is male heterogamety.

Example: Grasshopper

(ii) Female ZW with male ZZ is female heterogamety. This mechanism are a type of progamic sex determination.

Example: Birds