The Punnett square shows the possible genotype combinations of two parents who are hom0zygous for a trait. What is the probability of the parents having a child that is heterozygous for this trait?

0%
25%
75%
100%

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

What molecule does hemoglobin decay into over time