Structure Replication of DNA

Question 1

Semi conservative replication

Answer 1

Half old half new DNA strand

Question 2

Parent strand

Answer 2

Old part of DNA strand in semi conservative replication

Question 3

Daughter strand

Answer 3

New part of DNA strand in semi conservative replication

Question 4

Helicase

Answer 4

Enzyme that unwinds DNA for replication

Question 5

Ligase

Answer 5

Enzyme that links the new DNA together

Question 6

Polymerase

Answer 6

Enzyme that brings correct nitrogen based for sticky ends in DNA replication

Question 7

Okazaki fragment

Answer 7

Short chunks on DNA when replication is happening in a 3’-5’ direction

Question 8

Replication fork

Answer 8

Point where DNA separates to allow replication

Question 9

Double helix

Answer 9

Twisted ladder shape of dna

Question 10

Lagging strand

Answer 10

DNA replication built in the slower direction that has to jump because it’s not a 5’-3’ direction

Question 11

Leading strand

Answer 11

DNA replication of the faster strand

Question 12

5-3’

Answer 12

Direction DNA is made in

Question 13

Cell division

Answer 13

Division of identical cells for growth or repair

Question 14

Mitosis

Answer 14

Cell division of regular animal cells (not sex cells)

Question 15

Chromosomes

Answer 15

Supercoiled genetic information around protein balls

Question 16

Cancer

Answer 16

Uncontrolled cell division disease

Question 17

Metastasis

Answer 17

Cancer cells breaking off original tumour and travelling through the blood stream to set up tumours in new locations

Question 18

Mutation

Answer 18

Changes in genetic information for improvement or disease.

Question 19

Angiogenesis

Answer 19

Tumours “asking” for nutrients. New blood vessels set up to feed the tumour

Question 20

DNA fingerprinting

Answer 20

Using differences in DNA left behind to cross match to figure out who the stray DNA belonged to