meiosis and mitosis

Question 1

meiosis
what is crossing over?💞

Answer 1

-homologous chromosomes pair
-twist over each other and form a chiasmata
-exchange lengths
-same gene different allele

Question 2

what are the 3 stages of cell division

Answer 2

interphase
mitosis
cytokinesis

Question 3

what happens during prophase?🦎

Answer 3

chromosomes become visible
centrioles move to opposite sides of the cell and make spindle fibres

Question 4

what happens during metaphase?🌊

Answer 4

chromosomes line up at the centre of the cell
held by centromeres by the spindle fibres

Question 5

what happens during anaphase?💜

Answer 5

centromeres and sister chromatids divide
move to opposite sides of the cell

Question 6

what happens during telophase?☁️

Answer 6

membrane forms around the 2 sets of chromosomes
chromosomes recoil - skinny

Question 7

what is cytokinesis?⭐️

Answer 7

the cytoplasm divides
forming 2 genetically identical cells

Question 8

what is independent segregation?🌼

Answer 8

when homologous chromosomes pair up in meiosis, we don’t know which chromosomes will end up in the gametes

Question 9

out of meiosis and mitosis
which produces genetic variation and which produces genetically identical cells?
💕🎀🩷🌷🧡🌻💐

Answer 9

meiosis- variation
mitosis- identical

Question 10

what happens during interphase?😼

Answer 10

the cell grows and DNA is replicated