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Rosedale SS genetics unit 4

Total questions: 50

Worksheet time: 31mins

Name
Class
Date
1.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
2.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
3.
order of replication
a)
3, 4, 2, 1
b)
3, 1, 4, 2
c)
2, 1, 4, 3
d)
3, 4, 1, 2
4.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
5.

1. Which of the following is not part of nucleotide structure?

a)

A. 5-carbon sugar

b)

B. Phosphate group

c)

C. Phospholipid

6.

Which is the correct pairing?

a)

A. A-G

b)

B. C-G

c)

C. T-U

d)

D. U-C

7.

Which nucleotide isn't found in DNA?

(a)  

8.

Which macromolecule is shown?

a)

protein

b)

carbohydrate

c)

nucleic acid

d)

lipid

9.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
10.
DNA codes for...
a)
bases
b)
proteins
c)
amino acids
d)
phosphates
11.
If we think of DNA as a ladder, which parts are the steps of the ladder?
a)
the nitrogenous base pairs
b)
the phosphate-sugar backbone
c)
the genes
d)
the phospholipid bilayer
12.
If we think of DNA as a ladder, which parts are the sides of the ladder?
a)
the nitrogenous base pairs
b)
the phosphate-sugar backbone
c)
the genes
d)
the phospholipid bilayer
13.

The disc shaped protein core that DNA wraps around is called

a)

histone

b)

nucleosome

c)

chromatin

d)

gene

14.

Cells that contain two sets of chromosomes (example: 2n = 46) are called

a)

gametes

b)

haploid

c)

diploid

d)

chromatin

15.

The part of a chromosome that ties together two chromatids

a)

centromere

b)

phosphate

c)

deoxyribose

d)

sister chromatid

16.

A structure made of DNA that contains the genetic information in the form of genes needed to carry out cell functions

a)

chromatid

b)

RNA

c)

chromosome

d)

base pair

17.

Segments of DNA that code for a protein or functional RNA

a)

chromosome

b)

gene

c)

centromere

d)

base pair

18.

Chromosomes that have the same gene at the same location

a)

centromete

b)

deoxyribose nucleic acid

c)

homologous chromosomes

d)

base pair

19.

Two identical copies of chromatids produced by one chromosome

a)

trait

b)

sister chromatids

c)

characteristics

d)

base pair

20.

Which form of DNA is UNCOILED?

a)

Chromatid

b)

Chromatil

c)

Chromatic

d)

Chomatin

21.

Prokaryotic cells have what type of chromosomes

a)

circular double stranded

b)

double strand

c)

single strand

d)

single strand in circular formation

22.

The picture below shows the steps of DNA replication beginning with step one and ending with step three.


​Because you are reusing the old, or parent, DNA strand DNA replication is said to be

a)

Semi- Conservative

b)

Semi-discontinuous

c)

Continuous

d)

Fully-Conserveative

23.

Which is the first step?

a)

DNA Helicase unwinds original DNA strand

b)

RNA Primase lays down RNA primer for new nucleotide bases.

c)

DNA polymerase builds new strands by bring in new nucleotide bases.

d)

Ligase knits together fragments on lagging strand

24.

Which letter in the picture below depicts the replication fork in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

25.

Which letter in the picture below depicts the leading strand in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

26.
Small segments of DNA made on the lagging strand are called:
a)
Okazaki Fragments
b)
ERVs
c)
Transposable Elements
d)
Telomeres
27.
The enzyme that joins together small segments of newly replicated DNA is:
a)
DNA Polymerase III
b)
DNA Polymerase I
c)
DNA Polymerase II
d)
DNA Ligase
28.

Name the phase:

a)

Telophase I

b)

Anaphase I

c)

Metaphase II

d)

Anaphase II

29.

Name the phase:

a)

Anaphase I

b)

Metaphase I

c)

Prophase I

d)

Telophase I

30.

Individual chromatids are being pulled to the poles of two separate cells in:

a)

Telophase I

b)

Metaphase I

c)

Prophase II

d)

Anaphase II

31.

Chromosomes are visible and the nuclear membrane is disappearing in two cells. Spindle fibres are starting to form.

a)

Prophase II

b)

Metaphase I

c)

Prophase I

d)

Anaphase II

32.

Name the phase:

a)

Prophase I

b)

Metaphase II

c)

Telophase I

d)

Anaphase II

33.
A process where one cell forms two identical daughter cells is called...
a)
cell cycle
b)
cell division (mitosis)
c)
interphase
d)
cytokinesis
34.
During interphase the cell ___________.
a)
divides into two cells
b)
divides its nucleus
c)
replicates its DNA
d)
replicates the organelles within the cell
35.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
36.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
37.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
38.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
39.
What is one of the advantages, why is it better to reproduce sexually versus asexually?
a)
survival of the fittest
b)
overproduction
c)
genetic variation
d)
cloning
40.
Crossing over helps promote 
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
41.

CROSSING OVER TAKES PLACE DURING

a)

PROPHASE II

b)

PROPHASE I

c)

INTERPHASE

d)

METAPHASE I

42.
Identify the phase:
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
43.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
44.
What is the gender of the individual whose karyotype is seen in the image?
a)
Male
b)
Female
45.
Is this Karyotype human?
a)
Yes
b)
No
c)
Impossible to Determine
46.
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
a)
sister chromotids
b)
centromeres
c)
homologous chromosomes
d)
autosomes
47.

If the Diploid number for carrots is 18, the haploid number is

a)

18

b)

9

c)

27

d)

36

48.
What type of cells are spermatids?
a)
diploid
b)
Haploid 
c)
somatic
d)
stem
49.
The production, growth, and maturation of an egg or ovum
a)
spermatogenesis
b)
oogenesis
c)
fertilization
d)
conception
50.

What are the products of spermatogenesis?

a)

4 spermatogonia

b)

4 primary spermatocytes

c)

2 secondary spermatocytes

d)

4 spermatids

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