BIOC 1

Question 1

gene

Answer 1

DNA information unit that is able to perform a function.

Question 2

control region

Answer 2

determines if gene is On/Off

Question 3

exon

Answer 3

protein coding and UTR

Question 4

introns

Answer 4

splice acceptor and donor sites

Question 5

splicing

Answer 5

carried out by protein complex= splice some

Question 6

alternative spicing

Answer 6

away of making different proteins from 1 gene

Question 7

non coding genes

Answer 7

• tRNA
• ribosomal RNA
• microRNA

Question 8

nucleosome

Answer 8

DNA+ histone proteins

Question 9

scaffold

Answer 9

topoisomerase ii

specific proteins

Question 10

paradox

Answer 10

• 2 opposite functions (occurs stimultanseouly)

- DNA= stable to compact structure/protect from damage.

Question 11

histone tails

Answer 11

• DNA wrapped around- proteins sticking out

- modification decides if it s complicated or not

Question 12

substrata requirement for DNA polymerase

Answer 12

1-template
2-primer
3-a 3’OH end

Question 13

prokaryotic DNA replication

Answer 13

a) DNA polymerases
b) replication initiation requires helicases and primase
c) the leading and lagging strand are synthesized simultaneously
d) replication terminates at specific sites
e) DNA is replicated with high fidelity

Question 14

palm domain

Answer 14

• B sheets
• bind two Mg++ ions and specific amino acid chain
• monitors accuracy
• primary elements of catalytic site

Question 15

fingers

Answer 15

• binds to incoming dNTPS
• fold over if correct base pair is made
• twist template so that only one base in the active site