Gene Expression

Question 1

Gene expression involves both

Answer 1

Transcription & Translation of DNA sequences

Question 2

RNA is

Answer 2

single stranded

Question 3

RNA contains the bases

Answer 3

Guanine, Cytosine, Adenine and Uracil

Question 4

The three types of RNA are

Answer 4

mRNA. tRNA and rRNA

Question 5

The role of mRNA is to carry

Answer 5

a copy of the DNA code from the nucleus to the ribosome

Question 6

The role of tRNA is to carry

Answer 6

specific amino acids to the ribosome

Question 7

rRNA joins with protein to make

Answer 7

ribosomes

Question 8

Transcription takes place in the

Answer 8

nucleus

Question 9

Each triplet of bases on mRNA is called

Answer 9

a codon

Question 10

A triplet of bases on tRNA is called

Answer 10

an anticodon

Question 11

The enzyme involved transcription is

Answer 11

RNA polymerase

Question 12

Introns are removed from the

Answer 12

primary transcript

Question 13

Introns are

Answer 13

non coding regions

Question 14

Exons are

Answer 14

coding regions

Question 15

Exons are joined together to form a

Answer 15

mature transcript

Question 16

The process of forming a mature transcript (from a primary transcript) is called

Answer 16

RNA Splicing

Question 17

Translation begins at a

Answer 17

start codon

Question 18

Translation stops at a

Answer 18

stop codon

Question 19

The genetic code is translated into a sequence of

Answer 19

amino acids

Question 20

Amino acids are joined together by

Answer 20

peptide bonds

Question 21

Polypeptide chains can fold into a 3D shape and are held together by

Answer 21

Hydrogen bonds

Question 22

Alternative RNA splicing allows

Answer 22

different proteins to be expressed from one gene

Question 23

Proteins have different shapes because they have

Answer 23

different functions