Free Printable cell cycle

1.

Which of these statements is false?

a)

At sexual maturity, ovaries and testes produce diploid gametes by meiosis.

b)

In humans, each of the 22 maternal autosomes has a homologous paternal chromosome.

c)

In humans, the 23rd pair, the sex chromosomes, determines whether the person is female or male.

d)

Single, haploid sets of chromosomes in ovum and sperm unite during fertilization, forming a diploid, single-celled zygote.

2.

ANALOGY: Mitosis: somatic cells; Meiosis: __________.

a)

skin cells

b)

cancer cells

c)

gonads

d)

gametes

3.

If cells in the process of dividing are subjected to colchicine, a drug that interferes with the formation of the spindle fibers, at which stage will mitosis be blocked?

a)

prophase

b)

interphase

c)

anaphase

d)

metaphase

4.

After telophase, I of meiosis, the chromosomal makeup of each daughter cell is __________.

a)

diploid, and the chromosomes are each composed of a single chromatid

b)

diploid, and the chromosomes are each composed of two chromatids

c)

haploid, and the chromosomes are each composed of a single chromatid

d)

haploid, and the chromosomes are each composed of two chromatids

5.

Which of the following is a phase of mitosis?

a)

interphase

b)

cytokinesis

c)

S phase

d)

prophase

6.

. Which of the following is a correct statement about the events of the cell cycle?

a)

DNA replicates during cytokinesis

b)

the M Phase is usually the longest phase

c)

little happens during the G1 and G2 phases

d)

interphase consists of the G1, S, and G2 phases

7.

Sister Chromatids are ______________

a)

dense patches within the nucleus

b)

bacterial chromosomes

c)

joined strands of duplicated genetic materials

d)

prokaryotic nucleus

8.

A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if colchicine is added to a sample of cells in Prophase?

a)

The cells would immediately die.

b)

The cells would be unable to begin Mitosis and stay in G2.

c)

The chromosomes would segregate but in a disorderly pattern.

d)

The chromosomes would coil and shorten but have no spindle to which to attach.

9.

If an organism has a diploid chromosomes number of 84, what will be the chromosome number of each daughter cells after MITOSIS?

a)

84

b)

168

c)

42

d)

Cannot be determined

10.

After meiotic cell division, or meiosis, the daughter cells contain __________.

a)

a random number of chromosomes

b)

an unknown number of chromosome

c)

half of the chromosomes of the parent cell

d)

the same number of chromosomes as the parent cell

11.

Which is at the telophase stage?

a)

1

b)

2

c)

3

d)

4

12.

Which is at the metaphase stage?

a)

1

b)

2

c)

3

d)

4

13.

What is the correct sequence of the above mitosis?

a)

2,4,3,1

b)

2,1,4,3

c)

1,2,3,4

d)

1,4,3,2

14.

A single pair of homologous chromosomes as they might appear during various stages of either mitosis or meiosis

Which diagram represents anaphase I of meiosis?

a)

I

b)

II

c)

IV

d)

V

15.

Which diagram(s) represent anaphase II of meiosis?

a)

II only

b)

III only

c)

V only

d)

either II or V

cell cycle

Total questions: 15

Worksheet time: 8mins

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