ANSC 224 Male Repro Exam S12 And S13
Questions with Correct Answers 2025
In the experiment we discussed in class, oocytes that lacked the cortical granule enzyme Ovastacin were
unable to: - CORRECT ANSWER -Prevent many sperm from binding to them after they were fertilized
The usefulness of the PSA test has been questioned recently because: - CORRECT ANSWER -About 70-
75% of men with elevated PSA do not have prostate cancer
If a youngFman were taking androgens as anabolic steroids, his own testosterone would be due t
o . -FCORRECT ANSWER -Low; Negative feedback
Protein hormone receptors mustFbe on the plasma membrane because: - CORRECT ANSWER -
The hormone cannot penetrate through the plasma mebrane
Stem cell division in oogenesis ends when the female isFin . - CORRECT ANSWER -The fetal stage
The only somatic cells inside the seminiferous tubule are the . - CORRECT ANSWER -Sertoli cells
The lass cell division in spermatogenesis occurs in this phase: - CORRECT ANSWER -Meiosis
Diethyl stilbestrol (DES) is similar in chemical structure to which steroid? - CORRECT ANSWER -Estradiol
Problems in oogenesis often manifested in later developmental problems because - CORRECT ANSWER -
the oocyte must provide a storehouse of materials for the developing embryo
The migration of primodial germ cells migrate into the gonad occurs the gonad begins to differenti
ate - CORRECT ANSWER -after
Animals that are XY but have a mutation in Sry will: - CORRECT ANSWER -appear as females with ovaries
XY individuals that have Androgen insensitivity syndrome - CORRECT ANSWER -Have a female phenotype
, If placentas of bovine male-female twin fetuses do not fuse together, what is the likely outcome? -
CORRECT ANSWER -both fetuses will develop into fertile animals
In males, FSH regulates the production of by . - CORRECT ANSWER -Inhibin ; Sertoli cells
TightFjunctions between protect male germ cells. - CORRECT ANSWER -
Sertoli cells ; more advanced
The reproductive technology that has been most heavily adopted and has the greatest impact on animals
is? - CORRECT ANSWER -Artificial insemination
Viagra acts on a specific enzyme to prevent breakdown of -FCORRECT ANSWER -cGMP
DHEAF(dehydropiandrosterone), available in stores sellingFnutritional supplements, can be converted by t
he body into - CORRECT ANSWER -Estrodiol, dihydrotestosterone, and testosterone.
Disphenol A (BPA) has which effects on the body? - CORRECT ANSWER -
Agonist of estrogen receptor and antagonist of estrogen receptor
When sperm are cryopreserved (frozen-stored), a cryopreservative is added that - CORRECT ANSWER -
is toxic, reduces the freezing point, reduces ice crystals formation and produces larger gaps between ice c
rystals.
Oocytes arrested in the late diplotene or dictyate phase of prophase I resume meiosis -
CORRECT ANSWER -at ovulation
In bilateral cryptorchids, spermatogenesis is disrupted because - CORRECT ANSWER -
testicular temperature is too warm
If you labeled a very beginning spermatogonia, about how much time would itFtake for that cell to form a
sperm and be spermiated? - CORRECT ANSWER -2 months (~61 days)
Questions with Correct Answers 2025
In the experiment we discussed in class, oocytes that lacked the cortical granule enzyme Ovastacin were
unable to: - CORRECT ANSWER -Prevent many sperm from binding to them after they were fertilized
The usefulness of the PSA test has been questioned recently because: - CORRECT ANSWER -About 70-
75% of men with elevated PSA do not have prostate cancer
If a youngFman were taking androgens as anabolic steroids, his own testosterone would be due t
o . -FCORRECT ANSWER -Low; Negative feedback
Protein hormone receptors mustFbe on the plasma membrane because: - CORRECT ANSWER -
The hormone cannot penetrate through the plasma mebrane
Stem cell division in oogenesis ends when the female isFin . - CORRECT ANSWER -The fetal stage
The only somatic cells inside the seminiferous tubule are the . - CORRECT ANSWER -Sertoli cells
The lass cell division in spermatogenesis occurs in this phase: - CORRECT ANSWER -Meiosis
Diethyl stilbestrol (DES) is similar in chemical structure to which steroid? - CORRECT ANSWER -Estradiol
Problems in oogenesis often manifested in later developmental problems because - CORRECT ANSWER -
the oocyte must provide a storehouse of materials for the developing embryo
The migration of primodial germ cells migrate into the gonad occurs the gonad begins to differenti
ate - CORRECT ANSWER -after
Animals that are XY but have a mutation in Sry will: - CORRECT ANSWER -appear as females with ovaries
XY individuals that have Androgen insensitivity syndrome - CORRECT ANSWER -Have a female phenotype
, If placentas of bovine male-female twin fetuses do not fuse together, what is the likely outcome? -
CORRECT ANSWER -both fetuses will develop into fertile animals
In males, FSH regulates the production of by . - CORRECT ANSWER -Inhibin ; Sertoli cells
TightFjunctions between protect male germ cells. - CORRECT ANSWER -
Sertoli cells ; more advanced
The reproductive technology that has been most heavily adopted and has the greatest impact on animals
is? - CORRECT ANSWER -Artificial insemination
Viagra acts on a specific enzyme to prevent breakdown of -FCORRECT ANSWER -cGMP
DHEAF(dehydropiandrosterone), available in stores sellingFnutritional supplements, can be converted by t
he body into - CORRECT ANSWER -Estrodiol, dihydrotestosterone, and testosterone.
Disphenol A (BPA) has which effects on the body? - CORRECT ANSWER -
Agonist of estrogen receptor and antagonist of estrogen receptor
When sperm are cryopreserved (frozen-stored), a cryopreservative is added that - CORRECT ANSWER -
is toxic, reduces the freezing point, reduces ice crystals formation and produces larger gaps between ice c
rystals.
Oocytes arrested in the late diplotene or dictyate phase of prophase I resume meiosis -
CORRECT ANSWER -at ovulation
In bilateral cryptorchids, spermatogenesis is disrupted because - CORRECT ANSWER -
testicular temperature is too warm
If you labeled a very beginning spermatogonia, about how much time would itFtake for that cell to form a
sperm and be spermiated? - CORRECT ANSWER -2 months (~61 days)
