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DNA REPLICATION, TRANSCRIPTION AND TRANSLATION

Total questions: 35

Worksheet time: 13mins

Name
Class
Date
1.

What do you call a segment of the DNA that codes for a specific trait?

a)

chromatin

b)

genome

c)

RNA

d)

gene

2.

The complete set of genetic make-up is called a ___________.

a)

DNA

b)

genome

c)

protein

d)

nucleotide

3.

All these describe DNA EXCEPT for:

a)

it has an anti-parallel structure

b)

it is a double-helix

c)

it carries genetic information

d)

it is found in the ribosomes

4.

What is the basic unit of DNA?

a)

nucleotide

b)

protein

c)

RNA

d)

nucleus

5.

Which ones show the complementary base pairing of DNA? Check all that applies

a)

Adenine with Thymine

b)

Thymine with Cytosine

c)

Adenine with Uracil

d)

Cytosine with Guanine

6.

Which pair of scientists produced the image of DNA via x-ray?

a)


James Watson and Francis Crick


b)

Matthew Meselson and Franklin Stahl

c)

Rosalind Franklin and Maurice Wilkins

d)

Thomas Schwann and Robert Hooke

7.

Which pair of scientists is credited for discovering the DNA's double helix, anti parallel structure?

a)

Rosalind Franklin and Maurice Wilkins

b)


James Watson and Francis Crick

c)

Thomas Schwann and Robert Hooke

d)

Matthew Meselson and Franklin Stahl

8.

Which statement explains the SEMI-CONSERVATIVE model of DNA that Meselson and Stahl found when they were working with E. Coli bacteria?

a)

old or parental strands separate and act as templates to synthesize new DNA

b)

DNA is double stranded, and the strands are antiparallel because they run in opposite directions

c)

DNA has a sugar-phosphate backbone

d)

DNA contains genetic information

9.

DNA Replication is the process of copying DNA.
Which is NOT PART of DNA REPLICATION?


a)

Initiation

b)

Elongation

c)

Transcription

d)

Termination

10.

Check all the statements that are correct about DNA Replication.

a)

It is the process of copying RNA.

b)

process of producing two IDENTICAL replicas of DNA (daughter cells) from one original DNA molecule

c)

It happens during the S stage of Interphase.

d)

the steps involve Initiation, Elongation and Termination

11.

This is the step of DNA REPLICATION where unwinding of complimentary DNA happens with the help of the Helicase enzyme that breaks the hydrogen bonds between base pairs that are complementary,

a)

Elongation

b)

Initiation

c)

Translation

d)

Termination

12.

This is the process of DNA Replication where each strand of unwound DNA gets a new complementary strand with the help of primase and DNA polymerase enzyme

a)

Initiation

b)

Termination

c)

Elongation

d)

Transcription

13.

Which enzyme is responsible for adding nucleotide to template strands forming a new complementary strand? It makes sure to add a complementary strand in the 5’ to 3’ direction

a)

helicase

b)

ligase

c)

primase

d)

DNA polymerase

14.

The complementary strand of DNA is ALWAYS synthesized in the ______ direction?

a)

3' to 3'

b)


5' to 3'

c)


5' to 5'

d)


3' to 5'

15.

Which is the complementary strand of the given strand?

a)

b)

c)

d)

None of the above

16.

Which is the complementary strand of the given strand?

a)

b)

c)

d)

17.

Which ones are stages in PROTEIN SYNTHESIS -the process where cells construct proteins? Check all that applies

a)

Translation

b)

Transformation

c)

Transcription

d)

Termination

18.

In the TRANSCRIPTION stage of Protein Synthesis,
DNA template is used to make a strand of mRNA (single strand) where the

RNA Polymerase unwinds and unzips the DNA.
WHERE DOES TRANSCRIPTION OCCUR?

a)

cytoplasm

b)

mitochondria

c)

ribosomes

d)

nucleus

19.

In the _____ stage of Protein Synthesis
which occurs in the cytoplasm and ribosomes, mRNA codons are used to make an amino acid chain.

a)

Transcription

b)

Translation

c)

DNA Replication

d)

Termination

20.

TRUE OR FALSE?
The mRNA leaves the nucleus and goes to the ribosomes where proteins are synthesized during the Translation stage of Protein Synthesis.

a)

TRUE

b)

FALSE

21.

In an mRNA molecule, THYMINE is replaced by __________

a)

cytosine

b)

uracil

c)

guanine

d)

adenine

22.

Protein Synthesis takes place in the

a)

ribosomes

b)

nucleus

c)

cell membrane

d)

mitochondria

23.

TRUE or FALSE?
DNA is single stranded while RNA is double stranded

a)

TRUE

b)

FALSE

24.

What do you call a sequence of 3 consecutive nucleotides that code for a specific amino acid?

a)

nucleotide

b)

phosphate group

c)

Okazaki fragments

d)

codon

25.

How does protein synthesis dictate an organism’s appearance?

a)


By determining the paternity of a child

b)


By creating vaccines

c)


By changing many characteristics of an individual

d)


By tracking ancestry

26.

What is the complementary DNA strand for this template DNA strand?
CCA TTG ATC GAG

a)

GGT CCG TAG TCT

b)

GGT AAC TAG CTC

c)

GGU AAC UAG CUC

d)

GAG CTA GTT ACC

27.

What is the complementary DNA strand for this template DNA strand?
ATC CGC CCA GAC

a)

TGA ACA GGC CTG

b)

CAG ACC CGC CTA

c)

UAG GCG CCU GUC

d)

TAG GCG GGT CTG

28.

Using the tables, determine the trait expressed from the template strand
AGC CGA

a)

No moles

b)

Four-legged

c)

Brown moles

d)

Blue skin

29.

Using the tables, determine the trait expressed from the template strand
GGG AGG AAA CCC

a)

Long nose

b)

Stout

c)

Short nose

d)

Skinny

30.

Using the tables, determine the trait expressed from the template strand
ATC GGT TAT

a)

Male

b)

Female

c)

Bald

d)

Hairy

31.

Using the tables, determine the trait expressed from the template strand
CCG CCG CTA

a)

male

b)

female

c)

blue skin

d)

red skin

32.

Determine the trait expressed from the mRNA strand of
AAA AAC

a)

No moles

b)

Four-legged

c)

Brown Moles

d)

Female

33.

Determine the trait expressed from the mRNA strand of
CCU GCG GCU

a)

Male

b)

Blue Skin

c)

Female

d)

Red Skin

34.

What is the complementary tRNA strand for this mRNA strand?
AUU UCC UAG

a)

TAC AGG ATC

b)

UUC TGG UAC

c)

UAA AGG AUC

d)

UUC AGG UAC

35.

What is the complementary tRNA strand for this mRNA strand?
GCG UAU AUG

a)

CGC TTA TTC

b)

CGC AUA UAC

c)

GCG AUA TTC

d)

CGC TUT TAC