Assuming (i) that the two chromosomes in an homologous pair carry different alleles of some genes and (ii) that no crossing-over takes place, how many genetically different offspring could anyone human couple potentially produce? which of these two assumptions (i or ii) is more realistic?

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?