ch 16 and 17

Question 1

Which of the following represents an order of increasingly higher levels of chromosome organization?

Answer 1

a. nucleosome, 30-nm fiber, looped domain

Question 2

If you have 23% thymine, whats the percent of Guanine?

Answer 2

27%

Question 3

When does removal of introns occur

Answer 3

step 2

Question 4

When does transcription of DNA to mRNA occur?

Answer 4

step 1

Question 5

When does capping of mRNA occur?

Answer 5

step 3

Question 6

RNA Processing order (end product)

Answer 6

5’ cap, coding region, 3’ polyA tail

Question 7

Hershey and Chase

Answer 7

phage experiment, phages injected DNA into bacterium

Question 8

What is the genetic material?

Answer 8

DNA (polymer of nucleotides)

Question 9

Chargaff’s Rule

Answer 9

A=T C=G

Question 10

Erwin chargaff main point

Answer 10

DNA is diff among species

Question 11

Franklin main point

Answer 11

pic of DNA molecule showing DOUBLE HELIX

Question 12

Purines

Answer 12

TWO rings, A T

Question 13

Pyrimidines

Answer 13

THREE rings, C G

Question 14

A bacterium with radioactive thymine replicates, what happens to daughter cells?

Answer 14

DNA in both daughter cells will be radioactive

Question 15

Histones

Answer 15

DNA wrapped around

Question 16

Helicase

Answer 16

makes replication fork