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Biology Week 2: Transcription, Translation, and Genetics

Total questions: 10

Worksheet time: 3hrs 30mins

Name
Class
Date
1.

Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?

a)

The mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine.

b)

The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.

c)

The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of adenine is paired with thymine.

d)

The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of thymine is paired with adenine.

2.

A model of transcription and a codon chart are shown. Which amino acid would be coded first from the DNA strand being transcribed?

a)

Cys

b)

Phe

c)

Ile

d)

Met

3.

A model of the genetic control of coat color in rabbits is shown. Which Punnett square represents a cross that would produce albino offspring?

a)

b)

c)

d)

4.

A genetic cross involving two unlinked genes is represented.

AaGG x aaGg

Which genotype is NOT possible in the offspring produced by the cross?

a)

AaGG

b)

Aagg

c)

aaGg

d)

aaGG

5.

Mice have two unlinked allele pairs that affect fur color. The table shows how allele pairs affect fur color. The term “agouti” describes fur with pigmentation that changes in each hair from the shaft to the tip, giving the fur a banded appearance. Mice with the aa allele pair are albino, regardless of the second allele-pair combination. What is the probability of albinism in the offspring of a cross between two mice with AaBb alleles?

a)

1/16

b)

3/16

c)

4/16

d)

9/16

6.

What belongs in the last box?

a)

RR

b)

Rr

c)

rr

d)

ff

7.
How would the DNA sequence GCTATA be transcribed to mRNA?
a)
GCUAUA
b)
CGATAT
c)
CGAUAU
d)
GCUTUT
8.

What is the correct order to make a protein?

a)

Protein, DNA, RNA

b)

RNA, DNA, Protein

c)

DNA, RNA, Protein

d)

Protein, RNA, DNA

9.

After transcription mRNA goes from the nucleus to the _________.

a)

Ribosome

b)

Mitochondria

c)

Endoplasmic Reticulum

d)

Vacuoles

10.

Reorder the following amino acids if given this mRNA strand:

AUG UCC CCA CUC UAA

a)

Methionine

b)

Serine

c)

Proline

d)

Leucine

e)

Stop

1)
2)
3)
4)
5)