BIO EXAM 2

Question 1

HELICASES

Answer 1

UNDWINDS DNA

Question 2

SPBP

Answer 2

DNA TRANSCRIPTION
HOLDS DNA TOGETHER

Question 3

TOPOISOMERE

Answer 3

DNA TRANSCRIPTION
Relieves tension generated by the unwinding of the double helix dna strand

Question 4

DNA POLYMERASE 1

Answer 4

DNA TRANSCRIPTION/ REMOVES PRIMER

Question 5

DONA POLYMERASE 2

Answer 5

DNA TRANSCRIPTION/ ADD 3 NEW NUCLEOTIDES

Question 6

LIGASE

Answer 6

REPLICATION/ JOINS FRAGEMENTS OF NEWLY SYNTHESIZED DNA TO FORM A NEW SEAMLESS STRAND

Question 7

RNA POLYMERASE 2

Answer 7

TRANSCRIBES POLYPEPTIDE CODING GENES INTO MRNA

Question 8

WHAT does rna splicing not happen at

Answer 8

at the chromosomes levels

Question 9

trna

Answer 9

translation brings amino acid and places them in the correct place to create protein

Question 10

mrna

Answer 10

transcription
carries genetic information to the rest of the cells

Question 11

Rrna

Answer 11

protein synthesis/ stitches amino acid together to make proteins

Question 12

Aminoacyl-tRNA synthetase

Answer 12

PAIRS Trna with their cognate amino acid

Question 13

activators

Answer 13

dna transcription/ a protein that binds to dna and stimulates transcription of gene expression

Question 14

repressors

Answer 14

transcriptions/ turns off or redces gene expression

Question 15

transcription factors

Answer 15

converst rna into dna

Question 16

srp

Answer 16

delivery protein / translation

Question 17

spliceosomes

Answer 17

mrna transcription. only found in eukaryotes,
removes introns from pre mrna to make rna