LATG Chapter 11 Gnotobiotics questions
with correct answers.
What does the term "gnotobiotics" mean?
a. Precarious life
b. Well-known life
c. Unnatural biology
d. Abnormal biology ANS -b
Animals that were originally germ-free but were given a known group of bacteria are called
______________ animals.
a. axenic
b. specific pathogen free
c. defined flora
d. normal ANS -c
Animals that have a normal intestinal flora but are free of particular disease-causing organisms are
called:
a. axenic
b. specific pathogen free
c. defined flora
d. normal ANS -b
What is the term for using isolator caging to prevent microorganisms from reaching the animals housed
inside?
a. Prevention
b. Containment
c. Inclusion
d. Exclusion ANS -d
, What is another name for an axenic animal?
a. Germ-free animal
b. Clean-gut animal
c. Normal flora animal
d. Aflora animal ANS -a
What is a difference between hysterectomy derivation and embryo transfer?
a. In embryo transfer, the embryos are at an early stage of development; in hysterectomy derivation,
the fetuses are at term.
b. In embryo transfer, the embryos are transferred to a surrogate mother; in hysterectomy derivation,
the fetuses are returned to their biological mother.
c. In embryo transfer, the pups are removed at birth and adopted by a foster mother; in hysterectomy
derivation, the pups are bottle-fed as orphans.
d. None of the above ANS -a
What is a factor that influences success in producing axenic pups by hysterectomy derivation?
a. The number of pups in the foster mother's litter
b. The use of an axenic father
c. The timing of the hysterectomy
d. The type of anesthesia used ANS -c
The foster mother used to raise axenic mice should have had her own litter no more than ___ days
before the donor's pups are put in her cage.
a. 1
b. 2
c. 5
d. 7 ANS -b
with correct answers.
What does the term "gnotobiotics" mean?
a. Precarious life
b. Well-known life
c. Unnatural biology
d. Abnormal biology ANS -b
Animals that were originally germ-free but were given a known group of bacteria are called
______________ animals.
a. axenic
b. specific pathogen free
c. defined flora
d. normal ANS -c
Animals that have a normal intestinal flora but are free of particular disease-causing organisms are
called:
a. axenic
b. specific pathogen free
c. defined flora
d. normal ANS -b
What is the term for using isolator caging to prevent microorganisms from reaching the animals housed
inside?
a. Prevention
b. Containment
c. Inclusion
d. Exclusion ANS -d
, What is another name for an axenic animal?
a. Germ-free animal
b. Clean-gut animal
c. Normal flora animal
d. Aflora animal ANS -a
What is a difference between hysterectomy derivation and embryo transfer?
a. In embryo transfer, the embryos are at an early stage of development; in hysterectomy derivation,
the fetuses are at term.
b. In embryo transfer, the embryos are transferred to a surrogate mother; in hysterectomy derivation,
the fetuses are returned to their biological mother.
c. In embryo transfer, the pups are removed at birth and adopted by a foster mother; in hysterectomy
derivation, the pups are bottle-fed as orphans.
d. None of the above ANS -a
What is a factor that influences success in producing axenic pups by hysterectomy derivation?
a. The number of pups in the foster mother's litter
b. The use of an axenic father
c. The timing of the hysterectomy
d. The type of anesthesia used ANS -c
The foster mother used to raise axenic mice should have had her own litter no more than ___ days
before the donor's pups are put in her cage.
a. 1
b. 2
c. 5
d. 7 ANS -b
