Topic 3 Flashcards Preview

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Flashcards in Topic 3 Deck (13)
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1

What does a single nucleotide of RNA consist of?

phosphate, ribose sugar & a base

2

Name 2 differences between mRNA and DNA.

in mRNA uracil replaces thymine, also mRNA only has 1 strand.

3

What is the function of messenger RNA (mRNA)?

carries the genetic code from DNA in the nucleus to a ribosome.

4

What is the function of ribosomal RNA (rRNA)?

The rRNA and proteins form the ribosome

5

What is the function of transfer RNA (tRNA)?

each tRNA carries a specific amino acid to a ribsome

6

What is transcription?

Copying of the DNA code onto the mRNA

7

What is translation?

Converting the info given on the mRNA into a sequence of amino acids

8

What is a codon?

A triplet of bases on mRNA

9

What is a anticodon?

A triplet of bases on tRNA

10

What is a triplet?

a sequence of bases specifing one amino acid

11

What are the differences between tRNA and mRNA?

tRNA is folded, mRNA is not, tRNA has base pairing mRNA hasnt, mRNA is single-stranded tRNA is double stranded.

12

Where does transcription take place?

in the nucleus

13

Where does translation take place?

at the ribosome