Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

2.1.3 nucleotides and nucleic acids > semi-conservative replication > Flashcards

semi-conservative replication Flashcards

1
Q

why is DNA replication described as semiconservative?

A
  • strands from original DNA molecule act as templates
  • new DNA molecule contains 1 old strand and 1 new stand -> specific base pairing enables genetic material to be conserved accurately
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

explain the role of DNA helicase in semiconservative replication

A

breaks H-bonds between base pairs to form 2 single strands, each of which can act as a template

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how is a new strand formed during semiconservative replication?

A
  • free nucleotides from nuclear sap attach to exposed bases by complementary base pairing
  • DNA polymerase joins adjacent nucleotides on new strand in a 5’ to 3’ direction via condensation reactions to form phosphodiester bonds
  • H-bonds reform
How well did you know this?
1
Not at all
2
3
4
5
Perfectly

2.1.3 nucleotides and nucleic acids (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions