Key Area 1.3- Control of Gene Expression

Question 1

Unit of polypeptide structure

Answer 1

Amino acid

Question 2

Sequence of three bases on tRNA that specifies an amino acids

Answer 2

Anticodon

Question 3

Sequence of three bases on mRNA that specifies an amino acids

Answer 3

Codon

Question 4

Sequence of DNA that codes for a protein

Answer 4

Exon

Question 5

Transcription and translation

Answer 5

Gene expression

Question 6

Non-coding sequence of DNA

Answer 6

Intron

Question 7

Various chemical links joining amino acids and giving protein molecules their shape

Answer 7

Molecular interactions

Question 8

Strong chemical links in the primary structure of polypeptides

Answer 8

Peptide bonds

Question 9

Outward appearance of an organism

Answer 9

Phenotype

Question 10

Short strand of amino acids

Answer 10

Polypeptide

Question 11

Changes made to polypeptides following translation

Answer 11

Post-translational modification

Question 12

Molecule made when DNA is transcribed

Answer 12

Primary transcript

Question 13

Type of RNA that makes up ribosomes

Answer 13

Ribosomal RNA(rRNA)

Question 14

Site of protein synthesis; composed of rRNA and protein

Answer 14

Ribosome

Question 15

Ribonucleic acid, which occurs in several forms in cells.

Answer 15

RNA

Question 16

Enzyme involved in synthesis of primary transcripts from DNA

Answer 16

RNA polymerase

Question 17

Joining of exons following the removal of introns from a primary transcript.

Answer 17

RNA splicing

Question 18

Copying of a DNA sequence to make a primary transcript.

Answer 18

Transcription

Question 19

Transfers specific amino acids to the mRNA on the ribosomes.

Answer 19

Transfer RNA(tRNA)

Question 20

Production of a poly peptide using sequences of mRNA.

Answer 20

Translation

Question 21

RNA base not found in DNA.

Answer 21

Uracil