The two normal types of sex chromosomes are? by Sunday | Sep 9 | Biology JAMB | 0 comments A. XXY and XYY B. XX and XYY C. XY and XXY D. XX and XY Correct Answer: Option D – XX and XYY Users Also Read These:How many chromosomes would be in each gamete and…The haploid number of chromosomes in humans is?If the number of chromosomes in the skin cells of…Which of the following statements about chromosomes…A plant cell has 14 chromosomes prior to mitosis.…