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Final Exam Review Pt.3.
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Final Exam Review Pt.3.
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Final Exam Review Pt.3___ are not found in the seminiferous tubules.
A.
Interstitial (Leydig) cells
B.
Germ cells
C.
Sustentacular (Sertoli) cells
D.
Spermatids
E.
Corpus cavernosum cells - ANS-corpus cavernosum cells
___ determine/s whether an organism will be genetically male or female.
A.
hormonal, genetic and environmental factors
B.
prenatal hormone exposure
C.
the egg
D.
the sperm
E.
both egg and sperm equally - ANS-the sperm
___ have 46 chromosomes, where as ___ have 23.
A.
spermatids; spermatozoa
B.
primary spermatocytes; spermatids
C.
secondary spermatocytes
D.
spermatogonia, primary spermatocytes
E.
type A spermatogonia; type B spermatogonia - ANS-primary spermatocytes; spermatids
___ is/are generally accepted as a secondary sex characteristic
, A.
The enlargement of the breasts
B.
the presence of testes
C.
the prostrate gland
D.
the vagina
E.
the uterus - ANS-The enlargement of the breasts
___ stimulates the descent of the testes.
A.
The presence of the Y chromosome
B.
The presence of the X chromosome
C.
The absence of the X chromosome
D.
Testosterone
E.
Estrogens - ANS-Testosterone
___ stimulates the interstitial cells of the testes to secrete ___
A.
gonadotropin-releasing hormone (GnRH); LH
B.
follicle-stimulating hormone (FSH); androgen-binding protein (ABP)
C.
luteinizing hormone (LH);androgen-binding protein (ABP)
D.
luteinizing hormone (LH); testosterone
E.
luteinizing hormone (LH); estrogen - ANS-Luteinizing hormone (LH); testosterone
A sperm count any lower than ___ million sperm per mL of semen is usually associated
with infertility (sterility).
A.
250 to 500
B.
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