meiosis Flashcards
understand how sex cells are produced by meiosis (6 cards)
1
Q
what is meiosis?
A
a special type of cell division that produces sex cells
2
Q
how many daughter cells does meiosis produce?
A
meiosis produces 4 daughter cells
2
Q
what is the difference between mitosis and meiosis?
A
mitosis has one cell cycle, resulting in 2 daughter cells, but meiosis involves 2 cell cycles, resulting in 4 daughter cells
3
Q
how many chromosomes do sex cells need?
A
23, because the organism receives 23 from each parent cell, which adds up to 46 chromosomes
4
Q
why is meiosis more difficult than mitosis?
A
because in meiosis, the daughter cells are genetically different
5
Q
what is crossing over?
A
when chromosomes swap parts of their DNA, mixing up the genes and creating variety in the offspring
