Question

QUESTION 21 Which molecule or enzyme mediates the process of Transcription? a. RNA Polymerase b. RIbosomes...

QUESTION 21

  1. Which molecule or enzyme mediates the process of Transcription?

a.

RNA Polymerase

b.

RIbosomes

c.

Primase

d.

DNA Polymerase

e.

ribosomal RNA

QUESTION 22

  1. Which site of the tRNA molecule binds to the mRNA molecule?

a.

Poly-A tail

b.

anti-codon

c.

codon

d.

exon

e.

intron

QUESTION 23

  1. Which of the following accurately describes the Central Dogma?

a.

RNA to Protein to DNA

b.

DNA to Protein to RNA

c.

DNA to RNA to Protein

d.

Protein to RNA to DNA

QUESTION 24

  1. What is the product for Transcription?

a.

Protein

b.

double stranded DNA

c.

single stranded DNA

d.

RNA

e.

Carbohydrates

QUESTION 25

  1. What is the substrate for DNA Replication?

a.

amino acids

b.

deoxyribonucleotides

c.

ribonucleotides

d.

monosaccharides

e.

phosphates

QUESTION 26

  1. By convention, the sequence of bases in a Nucleic Acid is usually expressed as: the ___________ direction.

a.

5' to 3'

b.

1' to 3'

c.

clockwise

d.

3' to 5'

e.

3' to 1'

QUESTION 27

  1. Which of the following statements is true regarding introns?

a.

introns encode for gene products

b.

introns are part of the mRNA that are translated

c.

human genes do not have introns

d.

introns have no function

QUESTION 28

  1. Polysomes are ?

a.

aggregation of ribosomes

b.

aggregation of lysosomes

c.

many ribosomes attached to a single mRNA

d.

many ribosomes attached to DNA

e.

all of the above

QUESTION 29

  1. Which molecule(s) is/are NOT required for Transcription?

a.

a Primer

b.

RNA Polymerase

c.

a DNA template

d.

ribonucleotides

e.

All of the above are required.

QUESTION 30

  1. Which of the following enzymes is responsible for "exposing" or "unwinding" the DNA template (taking it out of its double helix) for DNA Replication?

a.

Helicase

b.

Topoisomerase

c.

DNA Ligase

d.

Primase

e.

Telomerase

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