Quiz 7

Question 1

During RNA processing in eukaryotes, what is removed?

Answer 1

Introns

Question 2

In lac operon, what does allolactose bind with?

Answer 2

Repressor protein

Question 3

What is the inducer for the lac operon?

Answer 3

Allolactose

Question 4

When a mutation occurs, which of the following always happens?

Answer 4

The nucleotide sequence in the organisms DNA changes

Question 5

This mutation is when an amino acid substitution occurs during protein synthesis.

Answer 5

Missense

Question 6

This mutation creates a stop codon.

Answer 6

Nonsense

Question 7

This is a mutation where a single DNA nucleotide is replaced with a different nucleotide.

Answer 7

Point

Question 8

This mutation always alters the transitional reading frame.

Answer 8

Frameshift

Question 9

Is kind of mutation always harms the organism.

Answer 9

Deleterious

Question 10

Human use of antibiotics has selected for the survival of microbes that can withstand those antibiotics. This is an example of:

Answer 10

Positive selection

Question 11

When a bacteriophage virus transports bacterial DNA to a new bacterial host it is called:

Answer 11

Transduction

Question 12

This involves a bacterial donor cell passing a plasmid top a bacterial recipient cell.

Answer 12

Conjugation

Question 13

All of the following are true for restriction enzymes except:

Answer 13

They randomly cut DNA into pieces of different sizes

Question 14

A restriction fragment is:

Answer 14

A segment of DNA

Question 15

Which of the following could serve as a vector in genetic engineering?

Answer 15

All the above

Question 16

What is it called when DNA from two different sources becomes chemically bonded together?

Answer 16

Genetic recombination

Question 17

A plasmid that carries genes that code for the production of enzymes that carbonize unusual compounds (like phenol) as a metabolic fuel source is called a:

Answer 17

Dissimulation plasmid

Question 18

In the language of recombinant DNA technology, what are “sticky ends”?

Answer 18

Single-stranded ends of DNA fragments resulting from the action of a restriction enzyme

Question 19

Once a recombinant DNA molecule has been made by the genetic engineer, it must be inserted into a cell before it can be expressed. How can this be accomplished?

Answer 19

All the above