MG Deck 1

Question 1

Describe the structure of DNA

Answer 1

Double-stranded helix of nucleotides that run Antiparallel

Question 2

Why is the replication of DNA considered semi-conservative

Answer 2

Each strand of the original molecule serves as a template. New DNA contains one conserved parental strand and one new one.

Question 3

Major players of DNA replication

Answer 3

Helicase, Topoisomerase, Primase, Ligase and DNA Polymerase

Question 4

Primase

Answer 4

RNA Primer-start site for the enzyme that makes DNA

Question 5

Helicase

Answer 5

The enzyme that unzips the DNA

Question 6

Topoisomerase

Answer 6

The enzyme that relaxes the strand for helicase to do its job

Question 7

Ligase

Answer 7

Binds (glues) the lagging strand

Question 8

DNA Polymerase

Answer 8

Reads DNA from 3-5 prime and synthesizes (makes) DNA from 5-3 prime.

Question 9

Why do DNA strands run Antiparallel?

Answer 9

due to space constraints

Question 10

Has linear DNA and multiple origins of replication

Answer 10

Eukaryotes

Question 11

1 origin bubble of replication

Answer 11

Prokaryotes

Question 12

All genetic information in a cell

Answer 12

Genome

Question 13

Molecule of DNA plus proteins

Answer 13

Chromosome

Question 14

Who does translation?

Answer 14

Ribosomes

Question 15

Segment of DNA encoding a functional product -has a non coding region

Answer 15

Gene

Question 16

The coding region of an organism

Answer 16

Genotype

Question 17

Only found in Prokaryotes

Answer 17

Plasmids

Question 18

Substitution

Answer 18

The wrong base is matched.-Frameshift

Question 19

Insertion

Answer 19

An extra base or bases are added in

Question 20

Deletion

Answer 20

A base is removed.

Question 21

Point Mutation

Answer 21

One nucleotide is changed.

Question 22

premature stop codon

Answer 22

Nonsense mutation

Question 23

only effects genotype-protein is not effected

Answer 23

Silent Mutation

Question 24

Amino acid changed may or may not affect function

Answer 24

Missense Mutation

Question 25

The exchange of similar (homologous) nucleotide sequences between 2 DNA molecules

Answer 25

Genetic Recombination

Question 26

Eat other things

Answer 26

Heterotroph

Question 27

Recipient absorbs DNA fragments in the environment from a dead cell that has lysed when it died

Answer 27

Transformation-ABT resistance spreads like this.

Question 28

fertile (F) Plasmid allows bacteria to form special pilus-allows plasmid to transfer to recipient

Answer 28

Conjugation

Question 29

New assembling phage accidentally packages a piece of the bacteria chromosome -after host DNA has degraded

Answer 29

Transduction