BISC 1303 - Chapter 14(EXAM2): DNA structure & function

0.0(0)
Studied by 0 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/4

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 6:46 PM on 4/30/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai

No analytics yet

Send a link to your students to track their progress

5 Terms

1
New cards

What does DNA pol. do?

proofreads DNA as it is being made

checks for mismatches

not perfect

*nucleotide mismatches can be repaired after replication

2
New cards

What are some sources of DNA damage?

chemicals, UV light, oxygen free radicals (by producti of metabolism)

3
New cards

Why is damage to DNA bad?

if damaged DNA is not repaired correctly, the damaged DNA will not pair correctly during replication

damaged DNA can eventually lead to mutations

4
New cards

Mutation

a stable change in the nucleotide sequence of a genome

mutations are not the same as damage, there is no way to fix mutations

5
New cards

What is an example of a DNA repair mechanism?

Nucleotide excision repair

UvrABC complex recognizes damage, cuts out damaged area of DNA (large chunk)

DNA pol. 1 fills in gap, DNA ligase seals gap