Question 45
Chromosomes, DNA and Sex LinkageSex-linked genes are located on
- A.Y-chromosome
- B.X- and Y - chromosomes
- C.homologous chromosomes
- D.X-chromosome
Show the answer and explanation
Answer: D (X-chromosome)
Explanation
Sex-linked traits such as colour-blindness and haemophilia are carried on the X chromosome. The Y chromosome carries very few genes.