Question

explain the function of chromosomes in determining heredity.

list two types of genes.
gene type i
•
gene type ii
•
explain how the chromosome carried by the sperm determines the gender of a child.

Explanation:

Chromosomes carry genes which are units of heredity. Dominant and recessive are two types of genes. Females have XX chromosomes and males have XY. Sperm can carry either an X or a Y - chromosome. If the sperm carries an X - chromosome, the child will be female (XX), if it carries a Y - chromosome, the child will be male (XY).

Answer:

• Explain the function of chromosomes in determining heredity: Chromosomes carry genes that hold hereditary information.
• List two types of genes:
• Gene Type I: Dominant genes
• Gene Type II: Recessive genes
• Explain how the chromosome carried by the sperm determines the gender of a child: Sperm can carry either an X or Y chromosome. An X - carrying sperm results in a female (XX) child, a Y - carrying sperm results in a male (XY) child.