homework 2

What is Interphase of a eukaryotic cell cycle?

G1 + S + G2 phases

Just G1 + G2 phases

Just S phase

Just M phase

Just G1 + S phases

G1 + S + G2 phases

Use this figure of cells in Mitosis to answer the following questions:

i. Where is prophase?

ii. Where is metaphase?

iii. Where is anaphase?

iv. Where is telophase?

A; C; B; D

What is/are the Key Feature(s) of "prometaphase"?

a) the nuclear envelope breaks down

b) attachment of spindle fibers to the kinetochore proteins surrounding centromeres

c) alignment of all chromosomes to the center of the cell

d) duplication of centrosomes

Only statements a, b, c are correct.

Only statements a & b are correct

Only statements a & c are correct

Only statement a is correct.

Statements a, b, c, d are correct.

Only statement b is correct.

Only statements a & b are correct

The division of cell material into daughter cells of everything EXCEPT the chromosomes is called

Karyokinesis

Interkinesis

Binary Fission

Cytokinesis

Centrosome

Cytokinesis

An egg with 12 chromosomes is fertilized by a sperm cell with 12 chromosomes.

How many chromosomes will the zygote have?

24

the correct answer is not listed

96

48

12

36

6

24

Tetrads line up at the center of the cell

metaphase I

Individual chromosomes line up at the center of the cell

metaphase II

Homologous chromosomes pair to form tetrads

prophase I

At the end of this stage, the first monoploid cells are formed

telophase I