nucleic acids test

Question 1

how does a ribosome read mRNA?

Answer 1

one codon at a time

Question 2

how many nitrogen bases in a row makes a codon?

Answer 2

3

Question 3

what does mRNA translate to what is it translated by?

Answer 3

specific amino acids, tRNA

Question 4

what does each tRNA carry?

Answer 4

its anticodon and a specific amino acid

Question 5

how are amino acids bonded?

Answer 5

peptide bonds

Question 6

when do the amino acids bond?

Answer 6

when the codons are read

Question 7

start codon?

Answer 7

AUG

Question 8

end codon?

Answer 8

one of three stop codons

Question 9

what does a codon do?

Answer 9

buid a protein

Question 10

transcription?

Answer 10

making a copy of DNA in RNA language (in nucleus)

Question 11

transcription starts with a ______

Answer 11

DNA

Question 12

Transcription 2nd step:

Answer 12

dna helicase “unzips” DNA molecule

Question 13

3rd step of transcription

Answer 13

one strand is a template to make mRNA strand using RNA polymerase

Question 14

4th step in transcription

Answer 14

dna and rna separate

Question 15

step 5 in transcription

Answer 15

DNA reassembles

Question 16

6th step in transcription

Answer 16

mRNA leaves the nucleus via the nucleus pores to find ribosomes

Question 17

RNA translation codes

Answer 17

A-U

C-G

Question 18

DNA translation codes

Answer 18

A-T

C-G

Question 19

what is the process of protein synthesis?

Answer 19

translation

Question 20

another name for protein chain

Answer 20

polypeptide chain

Question 21

what happens to tRNA after it drops off its amino acids?

Answer 21

goes to find more amino acids

Question 22

can mRNA be “reused”?

Answer 22

yes

Question 23

anticodon?

Answer 23

on a tRNA molecule, a specific sequence of 3 nucleotides that is complementary to a codon triplet on mRNA

Question 24

base pairing?

Answer 24

two chemical bases bonded to one another forming a “rung of the DNA ladder”

Question 25

chromatin

Answer 25

complex of DNA and proteins that makes up eukaryotic chromosomes; often used to refer to the diffuse

Question 26

codon

Answer 26

3 nucleotide sequence in mRNA that specifies a particular amino acid or polypeptide termination signal; basic unit of genetic code

Question 27

deoxyribonucleic acid (DNA)

Answer 27

double strand helical nucleic acid molecule consisting of nucleotide monomers with deoxyribose sugar and the nitrogenous bases adenine, cytosine, guanine, and thymine

Question 28

what does mRNA attach to?

Answer 28

ribosomes with rRNA