exam 3 kahoot

Question 1

What is the process by which genotype becomes expressed as a phenotype

Answer 1

Gene expression

Question 2

DNA and RNA are polymers composed of __ monomers

Answer 2

Nucleotide

Question 3

After a restriction enzyme binds to its restriction site, it cuts the two strands of the DNA by

Answer 3

Breaking chemical bonds at specific points within the sequence

Question 4

Restriction enzymes are obtained from

Answer 4

Bacteria

Question 5

Gel electrophoresis separates DNA fragments primarily on the basis of differences in their

Answer 5

Length

Question 6

The backbone of DNA consists of

Answer 6

A repeating sugar-phosphate-sugar pattern

Question 7

__ is intended to treat disease by introducing genes into an afflicted person

Answer 7

human gene therapy

Question 8

The world’s first genetically engineered pharmaceutical product was

Answer 8

Humulin

Question 9

This is when one of the two x chromosomes in each cell is inactivated at random

Answer 9

X chromosome inactivation

Question 10

In bacteria, what name is given to a cluster of genes with related functions, along with their DNA control sequences

Answer 10

Operon

Question 11

What is the function of a repressor protein

Answer 11

To turn off transcription by binding to the operator

Question 12

Approximately what percentage of the human genome consists of noncoding DNA

Answer 12

98.5%

Question 13

The process of making multiple copies of a gene by inserting it into a host genome and culturing the host is

Answer 13

Gene cloning

Question 14

An individual who is homozygous

Answer 14

Carries two copies of the same allele for a gene

Question 15

Cells communicate with one another via

Answer 15

Signal transduction pathways

Question 16

What is the best definition for recombinant DNA

Answer 16

DNA that includes nucleotides from two different sources

Question 17

The scientific field that studies complete sets of genes is called

Answer 17

Genomics

Question 18

How do cells develop differently from one another

Answer 18

Gene regulation

Question 19

A mating between a purebred purple-flowered pea plant and purebred white-flowered pea plant would produce a

Answer 19

Hybrid

Question 20

“Sticky ends” are __ that are produced by the action of __

Answer 20

Double-stranded DNA molecules w/ single-stranded ends; restriction enzymes

Question 21

After a gel electrophoresis procedure is run, the pattern of bars in the gel shows

Answer 21

The presence of various-sized fragments of DNA

Question 22

What feature of a DNA fragment causes it to move through a gel during electrophoresis

Answer 22

The electrical charges of its phosphate groups

Question 23

Neanderthals (homo neanderthalensis) are our closest living relatives

Answer 23

False

Question 24

What device is used to multiply DNA strands

Answer 24

Polymerase Chain Reaction

Question 25

__ is the manipulation of organisms or their components to make useful products

Answer 25

Biotechnology

Question 26

The CRISPR-Cas9 system allows the nucleotide sequence of specific genes to be edited in living cells

Answer 26

True

Question 27

The Innocence Project was a massive scientific endeavor to determine the nucleotide sequence of all the DNA in the human genome and identify the location and sequence of every gene

Answer 27

False

Question 28

Organisms that have acquired one or more genes by artificial means

Answer 28

Transgenic organism

Question 29

PCR permits a scientist to obtain enough DNA to allow a DNA profile to be constructed

Answer 29

True