The normal site of fertilization is the
A. ampulla of the uterine tube.
B. body of the uterus.
C. fundus of the uterus.
D. vagina.
E. uterine part of the uterine tube.
Answer: A
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Which of the following represents the correct pathway for sperm during ejaculation?
A. Ductus deferens - ejaculatory ducts - rete testes - efferent ductules - epididymis - seminiferous tubules - prostatic urethra - penile urethra - outside the body B. Rete testes - efferent ductules - epididymis - seminiferous tubules - ductus deferens - ejaculatory ducts - prostatic urethra - penile urethra - outside the body C. Seminiferous tubules - ductus deferens - ejaculatory ducts - rete testes - efferent ductules - epididymis - prostatic urethra - penile urethra - outside the body D. Seminiferous tubules - rete testes - efferent ductules - epididymis - ductus deferens - ejaculatory ducts - prostatic urethra - penile urethra - outside the body
The inheritance of sickle cell anemia involves incomplete dominance. (S determines normal hemoglobin, it is dominant; s is the sickle cell gene). A homozygous recessive person has sickle cell anemia. A heterozygous person has the sickle cell trait. If
parental genotypes are SS and ss, what is the probability of offspring having the sickle cell trait? A) 50%; half are Ss B) 100%; all are Ss C) 25%; one quarter are Ss
The ________ is the area of gray matter that surrounds the central canal.
Fill in the blank(s) with the appropriate word(s).
Abnormally large or hypertrophied glands tend to produce low hormone levels.
a. true b. false