Multiple choice

In a cross between a white-eyed female dragonfly and red-eyed male, how many female progenies will inherit white eyes?(White eyes are X-linked recessive)

  1. 0%

  2. 25%

  3. 50%

  4. 75%

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All the female eggs will have X chromosome with the white-eye mutation while the sperm will posses either a normal X chromosome or a Y chromosome. By using Punnett square, we can predict the outcome of this cross. Female progenies will receive X chromosome from both the sperm and egg cells. All females receive the dominant, red-eyed allele from their fathers and the recessive, white-eyed allele from their mothers.