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Transcription and Translation Part 1 Concept Review

Last updated almost 8 years ago

11 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

An assignment to review the structures, components and processes of transcription and post transcription editing.

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Asemmisa {{asɛmmisaAhyɛnsode}}

4.

The AUC and AUA codons in mRNA both specify
isoleucine. What feature of the genetic code explains this?

a. complementarity

b. nonsense codons

c. universality

d. degeneracy

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

How many nucleotides are in 12 mRNA codons?

a. 12

b. 24

c. 36

d. 48

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

Which subunit of the E. coli polymerase confers
specificity to transcription?

a. α

b. β

c. β'

d. σ

Asemmisa {{asɛmmisaAhyɛnsode}}

7.

The -10 and -35 regions of prokaryotic promoters are
called consensus sequences because ________.

a. they are identical in all bacterial species

b. they are similar in all bacterial species

c. they exist in all organisms

d. they have the same function in all organisms

Asemmisa {{asɛmmisaAhyɛnsode}}

8.

Which pre-mRNA processing step is important for
initiating translation?

a. poly-A tail

b. RNA editing

c. splicing

d. 7-methylguanosine cap