AP Bio Chapter 12 Part 2

Question 0

Haploid cells

Answer 0

Represented by n. Genetically identical to parent cell, from which they receive one copy of every chromosome. Sperm and eggs, produced by meiosis

Question 1

Sister chromosomes

Answer 1

Identical copies of the same chromosome, in S phase

Question 2

Diploid cells

Answer 2

Represented by 2n. Receive 2 copies of each chromosome from parents. Somatic cells, produced in mitosis. Genetically different from parent cells

Question 3

How many pairs of chromosomes do humans have

Answer 3

23

Question 4

Haploid cells ______ together to form new organisms

Answer 4

Fuse (sperm and egg)

Question 5

How many chromatids in G1

Answer 5

46

Question 6

How many chromatids in G2

Answer 6

92

Question 7

What is non reductive cell division and where does it occur

Answer 7

To reduce (or addition) in chromosome count. In mitosis of eukaryotic cell division

Question 8

What happens during interphase

Answer 8

Growth of cell
Replication of DNA 
Preparation for division 
Most of a cell's life cycle
Whitefish, onion

Question 9

Prometaphase

Answer 9

Chromosomes begin to migrate to cells equator

2 complete spindles at cell poles

Question 10

Metaphase

Answer 10

Chromosomes are at metaphase plate

Spindle attaches to “kinetochore” of chromosomes at centromere

Question 11

Kinetochore

Answer 11

Spot where spindle attaches to chromosomes

Question 12

What happens in anaphase

Answer 12

Chromatids split apart at centromere

Migration of chromatids to cell poles mediated by the kinetochore

Question 13

What happens in Telophase

Answer 13

Chromosomes decondense
Nuclear envelope reforms
Cytokinesis:cell membrane divides

Question 14

Prophase

Answer 14

Chromosomes condense
Nuclear envelope breaks down
Mitotic spindles start to form
In animal cells-centrioles divide