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Year 12 Biol - Meiosis

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
2.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
3.
This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?
a)
segregation of sister chromatids
b)
condensation and segregation of alleles
c)
mutationin which the DNA content of the gene is altered
d)
crossing - over in which alleles are exchanged
4.
 Cell created at the end of meiosis are best known as
a)
somatic cells
b)
gamete cells
c)
skin cells
d)
diploid cells
5.

Unlike mitosis, meiosis results in the formation of

a)

Two genetically identical cells.

b)

Four genetically different cells.

c)

Four genetically identical cells

d)

Two genetically different cells

6.

True or False:

In Meiosis, DNA replication occurs during interphase before meiosis I begins

a)

True

b)

False

7.

Mitosis results in two Diploid Cells, these have 46 chromosomes each. How many chromosome does each cell resulting from meiosis contain?

a)

23

b)

46

c)

22

d)

23 Pairs

8.

Name this phase of Meiosis

a)

Anaphase II

b)

Anaphase I

c)

Metaphase I

d)

Metaphase II

9.

The phase of Meiosis in which homologous chromosomes are moved to opposite sides:

a)

Metaphase I

b)

Prophase I

c)

Telophase I

d)

Anaphase I

10.

In meiosis I, ________ _________ separates.

a)

Homologous chromosomes

b)

Sister chromatids

c)

Crossing over

d)

Independent Assortment

11.

In meiosis II, ________ _________ separates.

a)

Homologous chromosomes

b)

Sister chromatids

c)

Crossing over

d)

Independent Assortment

12.

True or False:

In Meiosis, DNA replication occurs during interphase before meiosis I begins

a)

True

b)

False

13.

Which of the following is the best definition for MEIOSIS?

a)

the process of two haploid cells uniting

b)

the counting of chromosomes within a diploid cell

c)

a two-step process that reduces the number of chromosomes in half such that there is only one copy of all the chromosomes

d)

the equational division of a cell into two identical copies

14.

Check all of the following that DO occur during Telophase I and cytokinesis.

a)

The separated homologous chromosomes are at opposite poles of the cell.

b)

The cell divides in two.

c)

The chromosomes do not uncoil, since they are getting ready for Meiosis II.

d)

Sister chromatids are pulled away from each other.

15.

True or False. In Meiosis II, there are TWO cells that go through each phase at the same time.

a)

true

b)

false