Chapter 7 Study Q

Question 0

Which nitrogenous bases are purines?

Answer 0

Adenine and guanine

Question 1

Three parts of deoxyribonucleic acid

Answer 1

Nitrogenous base, deoxyribose, phosphate group

Question 2

Define complementary base pairing

Answer 2

As pairing with ts and Cs with Gs. Pyrimidine and purine

Question 3

Process of DNA replication in bacteria

Answer 3

Circular chromosome, bubble forms at origin and replicates bidirectionlly

Question 4

Why can DNA only be synthesized 5’ to 3’

Answer 4

3’ has the available OH group needed

Question 5

State function of DNA, helicase, primate, and DNA ligase in bacterial replication

Answer 5

DNA is the stuff being replicated, helicase melts open the DNA (part of replisome)
Primase- synthesizes RNA primer
DNA ligase- seals the nicks

Question 6

3 basic parts of RNA

Answer 6

Ribose
Phosphate
Nitrogenous base

Question 7

3 ways RNA differs from DNA

Answer 7

Ribose instead of deoxyribose
Uracil instead of thyamine
Single strand

Question 8

What type of macromolecule is DNA polymerase?

Answer 8

Enzyme (replicates)

Question 9

How are archea chromosomes similar to euks

Answer 9

DNA packing proteins
RNA polymerase
DNA polymerase
Similar ribosomal parts