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BIO 172 Pre-Questions and answers CORRECT!!!
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BIO 172 Pre-Questions and answers CORRECT!!!
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BIO 172 Pre-Questions andanswers CORRECT!!!
A spermatheca
A. Is a component of the male reproductive system used to
create male gametes
B. Is a component of the male reproductive system used to
store male gametes
C. Is a component of the male reproductive system used to
sort viable male gametes from non-viable male gametes
D. Is a component of the male reproductive system used to
deliver male gametes to females
E. Is a component of the female reproductive system used to
store male gametes - answer ✅✅E. Is a component of the
female reproductive system used to store male gametes
Internal fertilizations occurs in organism that have
A. viviparity
,B. ovoviparity
C. oviparity
D. all of the above
E. none of the above - answer ✅✅D. all of the above
Which of the following is true of gastrulation?
A. Four germ layers will develop
B. A hollow ball of cells will form at this stage
C. The blastula becomes a solid mass of cells
D. The mesoderm germ layer will form the nervous system
E. Cells of the blastula migrate spatially, resulting in the
blastula folding upon itself. - answer ✅✅E. Cells of the
blastula migrate spatially, resulting in the blastula folding
upon itself.
An acrosome is a structure
A. in eggs that helps present polyspermy
B. in eggs that helps attract sperm
C. in a sperm cell that helps prevent polyspermy
D. in a sperm cell that helps the sperm penetrate an egg
, E. in a sperm cell that provides energy that drives the
flagellum - answer ✅✅D. in a sperm cell that helps the sperm
penetrate an egg
A duck reproduces by
A. viviparity
B. ovoviparity
C. oviparity
D. spawning
E. external fertilization - answer ✅✅C. oviparity
In the experiment by Spemann and Mangold (which was
conducted using an amphibian in 1924), not only did a second
notochord form from the transplanted cells, but cells
surrounding the transplanted cells also became part of the
second notochord. What does this finding suggest about the
process of animal (or amphibian) development?
A. All cells in an embryo have a defined fate that cannot be
changed.
B. Having two notochords may be adaptive
C. Embryo transplantation experiments are difficult and
usually end in failure
, D. Certain embryonic cells have the ability to induce the
differentiation of neighboring cells
E. The nervous system controls organogenesis during early
embryo development and disruption of this system will lead
to abnormalities during development - answer ✅✅D. Certain
embryonic cells have the ability to induce the differentiation
of neighboring cells
During the process of oogenesis, which of the following is
true?
A. an oocycte will undergo mitosis
B. an oogonium will undergo meiosis
C. two haploid polar bodies are discarded
D. primary oocytes are haploid
E. none of the above - answer ✅✅C. two haploid polar
bodies are discarded
Which of the following is in correct chronological order?
A. increasing progesterone, ovulation, follicle maturation
B. ovulation, increasing progesterone, growth of the uterine
lining
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