Mitosis

Question 1

Mitosis is defined as

Answer 1

a type of cell duplication where cells give rise to two genetically identical daughter cells

Question 2

Mitosis occurs in

Answer 2

the bodies stem cells (eg., colon)

Question 3

Cell Division Occurs by

Answer 3

Mitosis or Meiosis

Question 4

Eukaryotes

Answer 4

• genomes large and linear
• Dna in nucleus

Question 5

Prokaryotes

Answer 5

• Genomes small and circular
• DNA in cytoplasm

Question 6

What happens in the G1 phase of the cell cycle?

Answer 6

growth, cellular metabolism

Question 7

What happens in the S phase of the cell cycle?

Answer 7

DNA replication (chromosome duplication)

Question 8

What happens in the G2 phase (gap 2) phase of the cell cycle?

Answer 8

Prep for mitosis

Question 9

What happens in the M phase of the cell cycle (mitosis)?

Answer 9

Chromosomal separation and cytokinesis

Question 10

What is interphase in the cell cycle?

Answer 10

the time between successive mitoses (G1 + S + G2)

Question 11

What happens during interphase?

Answer 11

Growth, DNA replication, cell functions

Question 12

How many autosomes are there in 1 pair of sex chromosomes?

Answer 12

22

Question 13

“IPMAT”

Answer 13

Interphase

Prophase

Metaphase

Anaphase

Telophase

Question 14

What happens in prophase?

Answer 14

Chromosomes condense, centrosomes radiate microtubules and migrate to opposite poles

Question 15

What happens in prometaphase?

Answer 15

Microtubules of the mitotic spindle attach to chromosomes

Question 16

What happens in metaphase?

Answer 16

Chromosomes align in the center of the cell

Question 17

What happens in anaphase?

Answer 17

Sister chromatids (which become individual chromosomes when the centromere splits) separate and travel to opposite poles

Question 18

What happens in telophase?

Answer 18

The nuclear envelope re-forms and chromosomes decondense

Question 19

Ploidy

Answer 19

The number of complete sets of chromosomes in a cell

Question 20

Haploid

Answer 20

A cell with one complete set of chromosomes (sperm cell or an egg in vertebrates)

Question 21

Diploid cell

Answer 21

• Has two complete sets of chromosomes (a somatic cell, such as a skin cell)

Question 22

Haploid (n) vs Diploid (2n)

Answer 22

Haploid cell (n): 1 unique chromosome from Dad’s germ cell + 1 unique chromosome from Mom’s germ cell
VS
Diploid (2n) has 2 unique chromosomes (2n)

Question 23

In Mitosis the amount of _______ changes, but NOT the _______

Answer 23

DNA, ploidy level

Question 24

Cytokinesis is responsible for

Answer 24

the final separation into two cells, by splitting the cytoplasm

Question 25

Centromere

Answer 25

Part of the chromosome where sister chromatids are held together

Question 26

Chromatids

Answer 26

strands of replicated chromosome

Question 27

Why do homologous chromosomes not cross during mitosis?

Answer 27

a. it would leaveto