Principles of Inheritance - Sex Determination, Sex-linked Inheritance

Grade 12 Biology — Principles of Inheritance - Sex Determination, Sex-linked Inheritance: 25 practice questions with instant scoring and explanations.

1. In humans, sex is determined by:
2. A sex-linked trait is controlled by:
3. Color blindness in humans is an example of:
4. A carrier female for color blindness has the genotype:
5. A color-blind male has the genotype:
6. If a carrier female (X^N X^c) has children with a normal male (X^N Y), the probability of a color-blind son is:
7. Hemophilia is inherited as:
8. A female who has hemophilia must have:
9. Barr body is an inactivated:
10. X-inactivation occurs in:
11. The purpose of X-inactivation is to:
12. Traits that show criss-cross inheritance pattern are typically:
13. A male with an X-linked trait will:
14. The XY chromosomal system is found in:
15. In birds, the sex determination system is:
16. Y-linked traits are found in:
17. A Klinefelter's syndrome individual has the chromosome constitution:
18. Turner's syndrome results from:
19. Sex-linked dominant traits in females are expressed:
20. The probability of a color-blind child from a color-blind mother (X^c X^c) and normal father (X^N Y) is:
21. If a cross is between carrier mother (X^N X^c) and color-blind father (X^c Y), color-blind daughters would be:
22. Down's syndrome is caused by:
23. Sex-linked genes show a characteristic pattern of inheritance called:
24. The SRY gene on the Y chromosome is responsible for:
25. Genes located on the non-recombining region of Y chromosome show: