The allele that causes Duchenne's muscular dystrophy is X-linked recessive. The symbol for the dominant allele is XF. The symbol for the recessive allele is Xf. If an XFXF female and an X Y male
have children, what percentage of their male offspring would be expected to have Duchenne's
muscular dystrophy?

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants, the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

What is the statement plant growth is affected by the color light

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.