Estrogen is a hormone that stimulates breast development, releasing of eggs from ovaries, and regulates the menstrual cycle. Is this gene turned on or off in males?

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

Do plant cells perform cellular respiration?