Question 1

Which event occurs during interphase?

Accepted Answer

the cell grows

Answer

centrioles appear

Answer

centromeres divide

Answer

spindle fibers begin to form

Question 2

During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?

Accepted Answer

metaphase

Answer

prophase

Answer

anaphase

Answer

telophase

Question 3

What DNA in a cell is coiled and condensed, but NOT duplicated it is in the form

Accepted Answer

chromatids

Answer

centromeres

Answer

chromatin

Answer

chromosomes

Question 4

What does differentiate mean?

Accepted Answer

to become specialized

Answer

to become embryonic

Answer

to become cancerous

Answer

to become indpendent

Question 5

In mitosis the cells created are

Accepted Answer

identical

Answer

genetically different

Answer

opposite

Answer

unique

Question 6

During the cell cycle, the cell spends most time in ____ and the least time in ___.

Accepted Answer

interphase; anaphase

Answer

prophase; telophase

Answer

anaphase; telophase

Answer

prophase; metaphase

Question 7

The two main stages of the cell division process are called

Accepted Answer

mitosis and interphase

Answer

synthesis and cytokinesis

Answer

the M phase and the S phase

Answer

interphase and cytokinesis

Question 8

Each chromosome consists of two

Accepted Answer

chromatiDs

Answer

daughter cells

Answer

chromatiNs

Answer

centrofibers

Question 9

The process by which a cell divides into FOUR daughter cells is called

Accepted Answer

meiosis

Answer

metaphase

Answer

mitosis

Answer

cell division

Question 10

Why do cells need spindle fibers?

Accepted Answer

to separate chromosomes

Answer

break down nucleus

Answer

divide the cell

Answer

duplicate the DNA

Question 11

Which of the following is a phase in the cell cycle?

Accepted Answer

all answers listed

Answer

S phase

Answer

M phase

Answer

G1 phase

Question 12

Cyclins are proteins that

Accepted Answer

regulate cell cycle

Answer

cause cancer

Answer

produce p53

Answer

heal wounds

Question 13

Which of the following is a phase of mitosis?

Accepted Answer

anaphase

Answer

S phase

Answer

cytokinesis

Answer

interphase

Question 14

Which pair is correct?

Accepted Answer

G2; preparation for mitosis

Answer

Mitosis phase; cell growth

Answer

G1 phase; DNA replication

Answer

S phase; cell division

Question 15

A tumor is

Accepted Answer

a mass of cancer cells

Answer

an accumulation of cyclin proteins

Answer

a scab that forms over a wound

Answer

defective p53 genes that have accumulated

Question 16

Chromosomes for tetrads and cross over during

Accepted Answer

prophase I

Answer

metaphase I

Answer

prophase II

Answer

metaphase II

Question 17

Uncoiled and spread out DNA in the nucleus is called

Accepted Answer

chromatiN

Answer

chromatiD

Answer

centromere

Answer

chromomsome

Question 18

In meiosis, which of the following do NOT occur?

Accepted Answer

occurs in somatic cells

Answer

genetic diversity

Answer

goes through nuclear division twice

Answer

produces 4 daughter cells

Question 19

If an organism's diploid number is 16, its haploid number is

Accepted Answer

8

Answer

24

Answer

32

Answer

4

Question 20

What holds sister chromatids together?

Accepted Answer

centromere

Answer

centriole

Answer

cleavage furrow

Answer

chromatin

Question 21

Why are there two sets of phases in meiosis?

Accepted Answer

to produce half the number of chromosomes in each gamete

Answer

to produce the same  number of chromosomes in each gamete

Answer

to produce triple the number of chromosomes in each gamete

Answer

to produce twice the number of chromosomes in each gamete

Question 22

How many chromosomes do human somatic (body) cells have?

Accepted Answer

46

Answer

23

Answer

24

Answer

48

Question 23

This part of the cell is divided in Mitosis

Accepted Answer

nucleus

Answer

organelles

Answer

cell membrane

Answer

cytoplasm

Question 24

What is the phase when spindle fibers move homologous chromosomes to opposite sides?

Accepted Answer

anaphase I

Answer

prophase I

Answer

anaphase II

Answer

metaphase II

Question 25

Unspecialized cells that have the potential to differentiate are known as?

Accepted Answer

stem cells

Answer

somatic cells

Answer

blood cells

Answer

neurons

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