LATG Unit 2 exam AALAS learning
library questions with answers.
Which statement is true of axenic animals as compared to animals with normal microflora?
a They have a larger thymus.
b They have a shorter life span.
c They have thicker intestinal walls.
d They have generally lower enzyme levels. ANS -d
What is the term for the killing of all living organisms?
a Microcidal
b Bacteriocidal
c Sterilization
d Disinfection ANS -c
On what characteristic are the two categories of dietary minerals (micro- and macrominerals) based?
a The complexity of their structure
b Their biological importance
c Their interaction with other minerals
d Whether they are broken down in the stomach ANS -b
What is the product of translation?
a Protein
b DNA
c Enzyme
d RNA ANS -a
,________ are the building blocks of proteins.
a Amino acids
b Hydrocarbons
c Fatty acids
d Enzymes ANS -a
Which protein carries oxygen to cells throughout the body?
a Hemoglobin
b Thyroid regulating c chormone
d High-density lipoprotein (HDL)
Protease ANS -a
In the pronuclear injection technique, some females are mated to vasectomized males to:
a provide sperm for fertilizing the ova.
b induce pseudopregnancy.
c increase the probability that the transgene will be incorporated in the cells.
d produce more eggs ANS -b
From what is the hormone prostaglandin derived?
a Carbohydrates
b Proteins
c Lipids
d Vitamins ANS -c
When does replication occur in mammalian cells?
a When the egg and the sperm unite
b During active protein synthesis
c Before the cells divide
d When the cell needs extra energy ANS -c
,Ferrets and cats must have a diet containing which organic acid?
a Purine
b Lysine
c Taurine
d Phenylalanine ANS -c
Which of the following is the most abundant protein found in a mammal?
a Keratin
b Serotonin
c Hemoglobin
d Collagen ANS -d
Which of the following statements best describes mRNA?
a It carries the cell's genetic information from the nucleus to the cytoplasm.
b It provides the chemicals necessary to construct the ribosomes.
c It is generally double-stranded.
d It contains the cell's genetic information. ANS -a
Which term represents the hereditary information that is present in an animal?
a Speciation
b Proteome
c Genome
d Phenome ANS -c
Which of the following is an example of a structural protein?
a Insulin
b Hemoglobin
c Adrenaline
, d Keratin ANS -d
The carbon bound to three hydrogens on one end of a fatty acid is called a _______ group.
a methyl
b polyunsaturated
c triglyceride
d hydroxyl ANS -a
Animals that are free from all demonstrable microorganisms are called:
a normal.
b specific pathogen-free.
c axenic.
d defined flora. ANS -c
Ketones are implicated in which disease?
a Cirrhosis of the liver
b Diabetes mellitus
c Atherosclerosis
d Phenylketonuria ANS -b
Why are foundation colonies generally maintained in the defined flora state instead of in the axenic
state?
a To improve immunity of the animals
b To optimize litter size
c To study the progression of infection
d To maintain genetic integrity ANS -b
Where is the eukaryotic cell's genetic information stored?
a In the chromosomes
library questions with answers.
Which statement is true of axenic animals as compared to animals with normal microflora?
a They have a larger thymus.
b They have a shorter life span.
c They have thicker intestinal walls.
d They have generally lower enzyme levels. ANS -d
What is the term for the killing of all living organisms?
a Microcidal
b Bacteriocidal
c Sterilization
d Disinfection ANS -c
On what characteristic are the two categories of dietary minerals (micro- and macrominerals) based?
a The complexity of their structure
b Their biological importance
c Their interaction with other minerals
d Whether they are broken down in the stomach ANS -b
What is the product of translation?
a Protein
b DNA
c Enzyme
d RNA ANS -a
,________ are the building blocks of proteins.
a Amino acids
b Hydrocarbons
c Fatty acids
d Enzymes ANS -a
Which protein carries oxygen to cells throughout the body?
a Hemoglobin
b Thyroid regulating c chormone
d High-density lipoprotein (HDL)
Protease ANS -a
In the pronuclear injection technique, some females are mated to vasectomized males to:
a provide sperm for fertilizing the ova.
b induce pseudopregnancy.
c increase the probability that the transgene will be incorporated in the cells.
d produce more eggs ANS -b
From what is the hormone prostaglandin derived?
a Carbohydrates
b Proteins
c Lipids
d Vitamins ANS -c
When does replication occur in mammalian cells?
a When the egg and the sperm unite
b During active protein synthesis
c Before the cells divide
d When the cell needs extra energy ANS -c
,Ferrets and cats must have a diet containing which organic acid?
a Purine
b Lysine
c Taurine
d Phenylalanine ANS -c
Which of the following is the most abundant protein found in a mammal?
a Keratin
b Serotonin
c Hemoglobin
d Collagen ANS -d
Which of the following statements best describes mRNA?
a It carries the cell's genetic information from the nucleus to the cytoplasm.
b It provides the chemicals necessary to construct the ribosomes.
c It is generally double-stranded.
d It contains the cell's genetic information. ANS -a
Which term represents the hereditary information that is present in an animal?
a Speciation
b Proteome
c Genome
d Phenome ANS -c
Which of the following is an example of a structural protein?
a Insulin
b Hemoglobin
c Adrenaline
, d Keratin ANS -d
The carbon bound to three hydrogens on one end of a fatty acid is called a _______ group.
a methyl
b polyunsaturated
c triglyceride
d hydroxyl ANS -a
Animals that are free from all demonstrable microorganisms are called:
a normal.
b specific pathogen-free.
c axenic.
d defined flora. ANS -c
Ketones are implicated in which disease?
a Cirrhosis of the liver
b Diabetes mellitus
c Atherosclerosis
d Phenylketonuria ANS -b
Why are foundation colonies generally maintained in the defined flora state instead of in the axenic
state?
a To improve immunity of the animals
b To optimize litter size
c To study the progression of infection
d To maintain genetic integrity ANS -b
Where is the eukaryotic cell's genetic information stored?
a In the chromosomes
