Bio unit 6 test

Question 1

What are the 3 jobs of the DNA

Answer 1

Strong information
copying information
gene expression

Question 2

What type of polymer is DNA

Answer 2

Nucleic Acid

Question 3

What is the monomer of DNA

Answer 3

Nucleotide

Question 4

What is the sugar in DNA

Answer 4

Deoxyribose

Question 5

WHat are the 3 components of DNA

Answer 5

Sugar
phosphate group
nitrogenous base

Question 6

what is the shape of the DNA

Answer 6

Double helix

Question 7

What is base pairing

Answer 7

A bonds to T
G bonds to C

Question 8

If a DNA strand is 16% adenine, what are the percentages of thymine, cytosine, and guanine

Answer 8

A=T so 16% thymine
100%-16% T= 68%
68% /2 = 34% c and 34% G

Question 9

During which phase does DNA replication take place

Answer 9

S phase

Question 10

which enzyme separates the DNA strand

Answer 10

Helicase

Question 11

Which enzyme joins the nucleotide to the complementary strand?

Answer 11

DNA polymerase

Question 12

what enzyme proodeads the strands of DNA to ensure that the correct bases are paired up

Answer 12

DNA polymerase

Question 13

what is the sugar in RNA

Answer 13

Ribose

Question 14

how many strands is RNA

Answer 14

single stranded

Question 15

what nitrogenous base is in RNA but not in DNA

Answer 15

Uracil

Question 16

Describe MRNA

Answer 16

Genetic measure that goes from nucleus to ribosome

Question 17

Describe TRNA

Answer 17

RNA that brings in amino acids and contacts anticodons

Question 18

Describe RRNA

Answer 18

RNA that makes up ribosome

Question 19

Which RNA has codons? Which has anticodons

Answer 19

MRNA has codons. TRNA has anticodons

Question 20

What is transcription? Where does transcription take place?

Answer 20

TRanscription is the process of taking a complementary MRNA stand which happens in the nucleus

Question 21

What is the job of RNA polymerase

Answer 21

enzyme that is used during transcription to make RNA strands

Question 22

what is the start of codon

Answer 22

AUG

Question 23

what amino acid is the start codon

Answer 23

Methionine

Question 24

What are the 3 stop codons

Answer 24

UAA, UAG, UGA

Question 25

what is translation? where does translation occur?

Answer 25

Process of using MRNA strand to assemble proteins which occurs at the ribosome

Question 26

What is the central dogma of biology?

Answer 26

DNA-RNA-Protein

Question 27

Describe what a point mutation is

Answer 27

Point mutations are when a single base is changed

Question 28

Describe what a frame shift mutation is

Answer 28

Frameshift mutations are when a base is added or deleted, shifting the entire sequence

Question 29

Which type of mutation would be more dangerous

Answer 29

Frame shift mutations can alter a protein so much that it cannot preform its usual function

Question 30

name 3 mutagens

Answer 30

UV rays, smoking/tobacco, chemical like arsenic