Chapter 8 -2 Flashcards Preview

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Flashcards in Chapter 8 -2 Deck (9)
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1

What makes the diversity of life possible?

The order/sequence of ATGC's

2

The two gene strands run in opposite directions contain how many base pairs?

one gene= 800 base pairs
another gene= 10,000 base pairs

3

How does DNA replicate and who found this?

semi conservation replication
Meselson-Stahl, 1958

4

Replication always occurs?

in the 5'->3'

5

What does DNA replication require many of?

enzymes

6

What do DNA helicases do?

open parallel DNA by breaking H-bonds

7

What adds RNA nucleotides?

Primase

8

What do DNA polymerases do?

attach A,T,G,C to the corresponding base on the template

9

What seals openings in the sugar phosphate backbone?

DNA ligases