Unit Two Exam

Question 1

The number of calories given by 1 gram of carbohydrate is equal to ______

Answer 1

the calories given by 1 gram of protein

Question 2

What is another name for glucose?

Answer 2

dextrose

Question 3

Which of the following is NOT a function of proteins?
a. regulates metabolism
b. stores energy in the body
c. fights infectious organisms
d. facilitates chemical reactions

Answer 3

b. stores energy in the body

Question 4

What enzyme is not normally present in the mouth?

Answer 4

Pepsin

Question 5

What best describes a primer?

Answer 5

a short, single-stranded segment of nucleotides required for the initiation of DNA synthesis.

Question 6

Which molecule is responsible for bringing the correct amino acid to the ribosome for protein synthesis?

Answer 6

Transfer RNA

Question 7

Which of the following statements about acquired mutations is true?
a. the were passed down from parents
b. they occur in cells undergoing meiosis
c. they occur in germ cells
d. they occur in somatic cells.

Answer 7

d. they occur in somatic cells.

Question 8

What is a somatic cell?

Answer 8

“Body” cell

Question 9

what technique can be used to visualize the location of protein in a tissue section?

Answer 9

immunostaining

Question 10

What gene editing took uses RNA to identify and bind target DNA sequences?

Answer 10

CRISPR/Cas9

Question 11

What is the term for a mouse that developed from two genetically distinct embryos?

Answer 11

chimera

Question 12

Which technique is NOT a phenotyping technique?
a. determining genetic makeup by polymerase chain reaction
b. visual observation for physical abnormalities
c. biochemical blood analysis to test organ function
d. assessment of sensorimotor function.

Answer 12

a. determining genetic makeup by polymerase chain reaction

Question 13

What kind of cabinet provides a cage environment with a linear-flowing, filtered, sterile air?

Answer 13

laminar flow cabinet

Question 14

When deriving axenic animals, microbiological monitoring should be conducted to make sure that ______ has not passed transplacentally to the pups.

Answer 14

mycoplasma spp.