Meiosis

Question 1

Gametes

Answer 1

Sperm and egg cells

Question 2

How many chromosomes does the cells in our body usually have?

Answer 2

46

Question 3

How many chromosomes do sperm and egg cells have?

Answer 3

23

Question 4

Why do egg and sperm cells only have 23 chromosomes?

Answer 4

They add up to 46 to form a new fertilized egg cell

Question 5

What happens before meiosis

Answer 5

Interphase (growing, dupe DNA)

Question 6

What are chromosomes made of?

Answer 6

DNA and protein

Question 7

Chromatids

Answer 7

Replicated chromosomes

Question 8

How many chromatids is 23 chromosomes

Answer 8

46

Question 9

How many times does division happen in meiosis?

Answer 9

2 times

Question 10

Prophase 1

Answer 10

Chromosomes consents and thicken / line up with their homologous pairs

Question 11

Homologous

Answer 11

Chromosomes are same size and contain same types of genes in same locations

Question 12

Crossing over

Answer 12

Chromosomes transfer DNA, recombinant chromosomes

Question 13

Metaphase 1

Answer 13

Chromosomes be in the middle of the cell in pairs

Question 14

Anaphase 1

Answer 14

Chromosomes pulled away by spindle fibers

Question 15

Telophase 1

Answer 15

2 newly formed nuclide and end meiosis 1 with 2 new cells

Question 16

Prophase 2

Answer 16

Spindles starting to form in new cells

Question 17

Metaphase 2

Answer 17

Chromosomes line up in single file in middle

Question 18

Anaphase 2

Answer 18

Chromatids getting pulled away by spindle fibers

Question 19

Telophase 2

Answer 19

Nuclide reforming and 2 new cells has divided into 4

Question 20

Cytokinesis

Answer 20

Completely split cytoplasm

Question 21

Nondisjunction

Answer 21

When cells receive too many or too little chromosomes in separation