do now topic 3 Flashcards
1
Q
what happens in the cell once sperm cell has entered in
A
meiosis is complete
chromosomes cime together
2
Q
why is important that gametes are produced by meiosis
A
half the chromosome numbers
genetic variation
3
Q
how is sperm able to enter the ovum
A
acrosome present
digestive enzymes break down jell like structure around the ovum
acrosomal reaction
