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CA #3 Adv. Bio

Total questions: 50

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

1. In Figure 1, what do the lines between the A-T and G-C pairs represent?

a)

Ionic bonds

b)

hydrogen bonds

c)

covalent bonds

d)

van der Waals forces

2.

1. Figure 1 is a simple representation of a DNA molecule. What does the circles portion of the molecule represent?

a)

a tRNA subunit

b)

an amino acid

c)

a nucleotide

d)

a mRNA subunit

3.

3. If the DNA molecule in figure 1 were transcribed, how many codons would the resulting mRNA molecule contain?

a)

1

b)

2

c)

3

d)

4

4.
How many total nucleotides are in Figure 1?
a)

10

b)

12

c)

14

d)

16

5.
5. Which portion of the DNA molecule varies from nucleotide to nucleotide and thus serves as the portion of the nucleotide which codes for amino acid sequences?
a)
phosphate group
b)
ribose sugar
c)
nitrogenous bases
d)
hydrogen bonds
6.
7. What mRNA sequence would be transcribed from the normal Hemoglobin DNA sequence found in Figure 2?
a)

A. TAC CAC GTG GAC TGA GGA CAC CTC TTC AGA CGG CAA TGA

b)

B. UAC CAC GUG GAC UGA GGA CUC CUC UUC AGA CGG CAA UGA

c)

C. UAC CAC GUG GAC UGA GGA CAC CUC UUC AGA CGG CAA UGA

d)

D. TAC CAC GTC GAC TGA GGA CTC CUC TTC AGA CGG CAA TGA

7.
What process is occuring in figure 3?
a)

transcription

b)

translation

c)

replication

d)

mitosis

8.

Which numbered structure in figure 3 represents a codon?

a)

2

b)

3

c)

4

d)

5

9.
What is #1 in Figure 3?
a)

mRNA

b)

tRNA

c)

rRNA

d)

cRNA

10.
Which numbered structure in figure 3 represents an anticodon?
a)

1

b)

2

c)

3

d)

4

11.

Which numbered structure in figure 3 represents an amino acid?

a)

1

b)

2

c)

3

d)

4

12.

Which numbered structure in figure 3 represents a polypeptide chain?

a)

2

b)

3

c)

4

d)

5

13.
What is the flow of information in a cell?
a)
mRNA → DNA → tRNA
b)
DNA →RNA→amino acids
c)
tRNA→protein→mRNA
d)
DNA→protein→quaternary structure
14.
Which of the following are joined by peptide bonds during the process of protein synthesis?
a)
monosaccarides
b)
nucleotides
c)
tryglycerides
d)
amino acids
15.
If the nucleotide shown in Figure 4 belongs to an RNA molecule, the structure labeled C could be any of the following EXCEPT:
a)

adenine

b)

guanine

c)

thymine

d)

cytocine

16.
18. If the nucleotide shown belongs to a DNA molecule, the structure labeled B could be
a)

deoxyribose

b)

phosphate

c)

ribose

d)

adenine

17.
Refer to figure 5. In what structure in the cell is transcription taking place?
a)

lysosome

b)

ribosome

c)

golgi body

d)

nucleus

18.
Refer to figure 5. What letter is labeling the ribosome?
a)

A

b)

B

c)

C

d)

D

19.
Refer to figure 5. Which structure is the tRNA molecule?
a)

A

b)

B

c)

C

d)

D

20.
What mRNA sequence would be transcribed from the DNA Template sequence included in Figure 6?
a)

ATG GGC UUU GCG AAA UGG UGA

b)

AUG GGC UUU GCG AAA UGG UGA

c)

TAC CCG AAA CGC TTT ACC TCT

d)

ATG GGC TTT GCG AAA TGG TGA

21.
What amino acid sequence should be synthesized from the DNA template sequence included in Figure 6?
a)

Met-Gly-Phe-Ala-Lys-Trp

b)

Tyr-Pro-Lys-Arg-Phe-Thr-Thr

c)

Phe-Leu-Ala-Ala-Glu-Glu-Gly

22.
What happens during the process of translation?
a)
Messenger RNA is made from DNA
b)
Transfer RNA is made from messenger RNA
c)
Copies of DNA are made
d)
The cell uses messenger RNA to produce proteins
23.
Which of the following best describes the function of DNA?
a)
DNA codes for ribosomal RNA which determines the properties and traits of an organism.
b)
DNA codes for the amino acid sequences of the body’s proteins. Proteins determine the traits of an organism
c)
DNA codes for tRNA which then determines the traits of all organisms.
d)
mRNA codes for DNA which then determines the amino acid sequence of the body’s proteins.
24.
a)

A

b)

B

c)

C

d)

D

25.
a)

A

b)

B

c)

C

d)

D

26.
a)

A

b)

B

c)

C

d)

D

27.
a)

A

b)

B

c)

C

d)

D

28.
a)

A

b)

B

c)

C

d)

D

29.
a)

A

b)

B

c)

C

d)

D

e)

E

30.
a)

A

b)

B

c)

C

d)

D

31.
a)

A

b)

B

c)

C

d)

D

32.
a)

A

b)

B

c)

C

d)

D

33.
a)

A

b)

B

c)

C

d)

D

e)

E

34.
a)

A

b)

B

c)

C

d)

D

35.
a)

A

b)

B

c)

C

d)

D

36.
a)

A

b)

B

c)

C

d)

D

37.
a)

A

b)

B

c)

C

d)

D

38.
a)

A

b)

B

c)

C

d)

D

39.

The process where man selects what traits are desirable in a plant or an animal is called:

a)

natural selection

b)

artificial selection

c)

man-made engineering

d)

genetic selection

40.

The process by which a population becomes better suited to its environment is known as

a)

divergence

b)

variation

c)

adaptation

d)

extinction

41.
a)

convergent evolution

b)

punctuated equilibrium

c)

divergent evolution

d)

adaptive radiation

42.
a)

Chimp

b)

Pigeon

c)

Perch

d)

LIzard

43.

What process does this model depict?

a)

mitosis

b)

crossing over

c)

anaphase

d)

meosis

44.

Why is the following process important?

a)

It maintains the number of chromosomes in a cell.

b)

It ensures that the resulting cells are identical.

c)

It creates multiple alleles.

d)

It is a source of genetic variation.

45.

Who is the father of modern genetics?

a)

Abdul Rahman Al Ghafiqi

b)

Don Swanson

c)

Frances Crick

d)

Gregor Mendel

46.

Colorblindness is much more common in males than in females. The colorblind males inherit the trait from an unaffected mother. Which of the following best describes the inheritance pattern of the trait?

a)

colorblindness is a y-linked trait

b)

colorblindness is polygenic trait.

c)

colorblindness is an X-linked recessive trait.

d)

colorblindness results from codominant alleles.

47.

In pea plants the allele for purple flowers (P) is dominant over the allele for white flowers (p). Two heterozygous purple-flowered plants are crossed? What is the probability that the cross will produce a white-flowered offspring?

a)

1:4

b)

1:2

c)

1:3

d)

1:8

48.

A normal human somatic cell contains 46 chromosomes, how many of these chromosomes are classified as autosomes?

a)

All 46

b)

2

c)

44

d)

23

49.

Chromosomes appear in ______________ pairs on a karyotype. One chromosome is inherited from the father, the other from the mother. These Chromosomes have the same information in the same places.

a)

segregated

b)

haploid

c)

diploid

d)

homologous.

50.

Blood type is an example of co dominance and __________.

a)

incomplete dominance

b)

multiple alleles

c)

epistasis

d)

polygenic inheritance

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