Question

1. What are the three indicators that any factor is gender-related? (3 pts)

4. Gives an example of dominance not related to gender. (1 pt)

5. Gives an example of a non-sex-related recessive character. (1 pt)

6. Gives an example of a sex-related recessive character. (1 pt)

Answer 1

1. Firstly, the frequency of disease is different between males and females.
Secondly, an affected son has unaffected parents, while an affected daughter must have an affected father.
Thirdly, the characteristic usually skips a generation, and is passed from grandfather to grandson.
4. Being short is dominant over being tall.
5. Cystic fibrosis, inability to roll the tongue, albinism.
6. Hemophilia