Gene expression key words

Question 1

amino acids

Answer 1

unit of polypeptide structure

Question 2

anticodon

Answer 2

sequence of three bases on tRNA that codes for a specific amino acid

Question 3

attachment site

Answer 3

site on a transfer RNA molecule to which a specific amino acids binds

Question 4

condon

Answer 4

sequence of three bases on mRNA that codes for a specific amino acid

Question 5

exon

Answer 5

sequence of DNA that codes for a proetein

Question 6

gene expression

Answer 6

transcription and translation of a gene to synthesize proteins

Question 7

intron

Answer 7

non-coding sequence of DNA

Question 8

messenger RNA (mRNA)

Answer 8

carries a copy of the DNA code from nucleus to ribosomes

Question 9

phenotype

Answer 9

outward appearance of an organism

Question 10

polypeptide

Answer 10

short strand of amino acids

Question 11

post-translation modification

Answer 11

changes made to polypeptides following translation

Question 12

primary transcription

Answer 12

molecule made when DNA is transcribed

Question 13

ribosomal RNA

Answer 13

type of RNA that makes up ribosomes

Question 14

ribosome

Answer 14

site of protein synthesis;composed of rRNA and protein

Question 15

RNA

Answer 15

ribonucleic acid;occurs in several forms in cells

Question 16

RNA polymerase

Answer 16

enzyme involved in synthesis of primary transcripts from DNA

Question 17

RNA splicing

Answer 17

joining of exons following the removal introns form primary transcription

Question 18

Transcription

Answer 18

coping of DNA sequences to makes a primary transcript

Question 19

Transfer RNA (tRNA)

Answer 19

transfer specific amino acids to the mRNA on the ribosomes

Question 20

translation

Answer 20

production of a polypeptide at a isomerism using information encoded in mRNA

Question 21

uracil (U)

Answer 21

RNA base not found in DNA