Multiple choice

The type of sex determination found in insects is

  1. ZO-ZZ type

  2. ZW-ZZ type

  3. XX-XO type

  4. XX-XY type
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This type of sex determination occurs in insects and mammals including human beings. Here, the females bear two identical homologous sex chromosomes designated as XX and the males bear two dissimilar sex chromosomes designated as X and Y. Thus, females are homogametic, producing only one type of ovum, and males are heterogametic, producing two types of gametes.

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