chapter 13 test

Question 1

uracil

Answer 1

used instead of thymine

Question 2

ribose

Answer 2

used instead of deoxyribose

Question 3

mRNA

Answer 3

messenger/ instructions to build protein

Question 4

rRNA

Answer 4

ribosomal/ what ribosomes are made of

Question 5

tRNA

Answer 5

transfer / transfers amino acids

Question 6

mutations

Answer 6

change in the code

Question 7

what if mutations are neutral

Answer 7

don’t help or harm

Question 8

positive mutations

Answer 8

makes proteins for beneficial uses

Question 9

negative mutations

Answer 9

causes diseases or physical appearances

Question 10

mutagen

Answer 10

environmental agents that cause mutations

Question 11

codons

Answer 11

3 bases that make a code for RNA

Question 12

eukaryotic protein synthesis

Answer 12

makes protein

Question 13

transcription in the nucleus

Answer 13

makes mRNA

Question 14

translation in cytoplasm

Answer 14

ribosome attaches to an mRNA molecule

Question 15

gene

Answer 15

contains instructions to make proteins

Question 16

how is DNA related to mRNA

Answer 16

DNA gives mRNA instructions to make proteins for RNA

Question 17

RNA Polymerase

Answer 17

what builds mRNA

Question 18

promoter

Answer 18

where rna polymerase starts on dna

Question 19

introns

Answer 19

are cut out during RNA editing(sequence of dna)

Question 20

exons

Answer 20

kept during rna editing(sequence of dna)

Question 21

translation

Answer 21

creates proteins

Question 22

protein

Answer 22

chain of amino acids(products)

Question 23

how is rRNA related to protein

Answer 23

where the protein is made