chapter 3

Question 1

Draw A-T base pairing

Answer 1

Question 2

Draw C-G base pairing

Answer 2

Question 3

DNA and RNA are the primary players in the storage and decoding of genetic information

T/F

Answer 3

True

Question 4

storage and transmisson molecule?

Answer 4

DNA

Question 5

components of ribosomes?

Answer 5

rRNA

Question 6

carrying genes in their RNA form to ribosomes for protein synthesis

Answer 6

mRNA

Question 7

the adapter molecules between the nucleic world and the protein world

• transport amino acids from the cytoplasm to the ribosome

Answer 7

tRNA

Question 8

nucleotide form

Answer 8

Question 9

Answer 9

ribose

Question 10

Answer 10

deoxyribose

Question 11

a substance that enhances the action of an enzyme (protein that catalyzes a chemical reaction)

Answer 11

coenzyme

Question 12

The physical properties of the DNA
double helix are:

Answer 12

1.) nitrogenous base tautomerize to the keto form
2.) planar aromatic bases form a stack
3.) the aromatic bases hydrogen bond with one another
4.) the two strands of DNA are antiparallel

Question 13

comprise all the genetic
information for an organism, may be allocated among numerous
chromosomes

Answer 13

genome

Question 14

separate structures that
contain a portion of the genome

Answer 14

chromosome

Question 15

RNA characteristics

Answer 15

• store and transmit genetic information
• act as a catalyst
• usually held up in the stem-loop structure