chapter 10

Question 1

code of life

Answer 1

DNA

Question 2

code for protein

Answer 2

DNA

Question 3

make up of DNA

Answer 3

one sugar
one phosphate group
4 bases

Question 4

held together by covalent bonds

Answer 4

phosphate and deoxyribose groups

bases and deoxyribose

Question 5

held together by hydrogen bond

Answer 5

4 bases

Question 6

semiconservative model

Answer 6

• 2 dna strands separate
• each strand is matched using base pairing
• new dna helix had 1 old strand with one new strand

Question 7

bubbles

Answer 7

origins of replication

Question 8

bubbles are opened up by _____ in the DNA

Answer 8

enzymes

Question 9

enzymes add ______ to fuse the bubbles

Answer 9

nucleotides

Question 10

break hydrogen bonds between nucleotides

Answer 10

helicase

Question 11

adheres 2 pieces of DNA for lagging strand

Answer 11

ligase

Question 12

DNA-> mRNA in nucleus by RNA polymerase

Answer 12

transcription

Question 13

mRNA-> polypeptide chains at ribosome

Answer 13

translation

Question 14

strings of animo acids

Answer 14

polypeptide chains

Question 15

building blocks of proteins

Answer 15

amino acids

Question 16

code for proteins

Answer 16

mRNA

Question 17

bring amino acids to ribosome

Answer 17

tRNA

Question 18

make up 2 subunits of ribosomes

Answer 18

rRNA

Question 19

3 steps of transcription

Answer 19

1. initiation
2. elongation
3. termination

Question 20

RNA polymerase binds to promoter

Answer 20

initiation

Question 21

determines with DNA strand is used and where gene code begins

Answer 21

promoter

Question 22

1 RNA nucleotide is matched to RNA as strand grows

Answer 22

Elongation

Question 23

RNA polymerase reaches the terminator

Answer 23

termination

Question 24

ends the gene signal and RNA polymerase detaches

Answer 24

terminator

Question 25

un needed parts of the sequence

Answer 25

introns

Question 26

part of the sequence that code for the proteins

Answer 26

exons

Question 27

where does mRNA leave

Answer 27

the nucleus

Question 28

primary transcript can be edited in different ways to give different mRNA codes

Answer 28

RNA splicing

Question 29

amino acids are matched to

Answer 29

mRNA codons

Question 30

each tRNA molecule carries

Answer 30

1 amino acid

1 anticodon

Question 31

three bases that match mRNA strand

Answer 31

anticodon

Question 32

2 subunits of rRNA hold mRNA

Answer 32

translation

Question 33

tRNA reads mRNA codon by matching its anticodon

Answer 33

translation

Question 34

rRNA and proteins come together to form

Answer 34

ribosomes