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Worksheets

HL Bio DNA

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

DNA Polymerase III adds nucleotides from:

a)

3' to 5' on the lagging strand

b)

5' to 3' on both strands

c)

3' to 5' on the leading strand and 5' to 3' on Okazaki fragments

d)

none of the above are true

2.

tRNA activating enzyme does what job?

a)

Reloads a tRNA with a new amino acid

b)

links amino acids together forming peptide bonds

c)

enters the A site and moves to the p site

d)

pairs anticodons with codons

3.

Quartenary protein structure involves

a)

the sequence of amino acids

b)

Alpha helices or beta pleated sheets

c)

Additional folding based on R-group charges

d)

Multiple polypeptide chains coming together

4.

The difference between bound and free ribosomes is:

a)

Bound ribosomes make proteins for cellular use

b)

Bound proteins are in the cytoplasm

c)

Bound proteins create proteins for excretion

d)

None of the above are true

5.

The difference between codons and anticodons is

a)

codons are on tRNA

b)

anticodons are on tRNA

c)

anticodons are used in transcription

d)

all of the above are true

6.

What is the central dogma of biology

a)

RNA --> DNA --> PROTEIN

b)

Protein --> RNA --> DNA

c)

DNA--> RNA --> Protein

d)

DNA --> Protein --> RNA

7.

Increased methylation on DNA causes:

a)

reduced frequency of transcription

b)

increased frequency of transcription

c)

increased translation rates

d)

increased polysome counts

8.

What is the difference between exons and introns?

a)

exons have coding sections of DNA

b)

introns are coding regions of DNA

c)

introns reduce methylation rates

d)

exons increase methylation rates

9.

Alternative splicing:

a)

allows for additional protein creations from the same DNA segment

b)

removes different exons

c)

creates variety, as in antibody production

d)

all of the above

10.

Which of the following is not a step of transcription

a)

Intitation

b)

Elongation

c)

Inhibition

d)

Termination

11.

Rosalind Franklin helped determine

a)

that DNA was the genetic material

b)

DNA is a double helix

c)

DNA is in all living things

d)

DNA is made of nucleotides

12.

DNA Polymerase I

a)

Adds primers to new strands

b)

Links Okazaki fragments

c)

Changes RNA primers to DNA

d)

Adds the new nucleotides on the lagging strand

13.

Which of the following is not a 'non-coding' region of DNA

a)

Telomeres

b)

Exons

c)

Gene regulatory systems

d)

Satellite DNA

14.

A nucleosome:

a)

is made of histones

b)

is not in prokaryotes

c)

supercoils the DNA

d)

All of the above

15.

The #1 song on the Billboard Hot 100 this week is

a)

Sicko Mode - Travis Scott

b)

Happier- Marshmallo & Bastille

c)

Without Me - Halsey

d)

Thank U, Next - Ariana Grande

16.

The current #1 movie is

a)

Creed II

b)

Ralph Breaks the Internet

c)

Fantastic Beasts 2

d)

The Grinch