UNDERSTANDING ANATOMY AND
PHYSIOLOGY EXAM 3 PRACTICE TEST 2026
FULL SOLUTIONS REVIEW PACK
◉ The genetic information in male offspring is:
Answer: inherited from both the father and the mother.
◉ Female offspring result when:
Answer: a sperm with an X chromosome fertilizes the egg.
◉ An alternative form of a gene is called:
Answer: an allele.
◉ Which of the following statements about alleles is correct?
Answer: An individual may have two alleles that are the same or two
alleles that are different.
◉ Which of the following statements about sex-linked inheritance is
correct?
Answer: Almost all of the sex-linked traits are carried on the X
chromosome and are recessive.
,◉ Most common chromosomal abnormalities result when:
Answer: homologous chromosomes fail to separate during
meiosis.
◉ The fertilized egg is at which stage when it implants in the uterus?
Answer: Blastocyst
◉ How long can sperm remain viable within the female reproductive
tract?
Answer: As long as 6 days
◉ What is the significance of the embryotic disc?
Answer: It gives rise to the three germ layers.
◉ Which is a function of the yolk sac?
Answer: Supply the fetus with nutrients
◉ During the first 2 months of pregnancy, what is the source of
estrogen and progesterone?
Answer: Corpus luteum
,◉ During which stage of pregnancy is the developing fetus most
vulnerable to toxins, stress, drugs, and nutritional deficiencies?
Answer: First trimester
◉ What is the function of the foramen ovale?
Answer: Divert blood from the right to the left atrium
◉ Fertilization normally occurs in the:
Answer: fallopian tube.
◉ At which point is the product of conception called a fetus?
Answer: After the organs are formed
◉ Which hormone is responsible for the production of milk in the
mammary glands?
Answer: Prolactin
◉ What characteristic of umbilical cord blood makes it useful in
treating certain diseases?
Answer: It contains an abundance of stem cells.
◉ The first hormone secreted at the onset of puberty in both males
and females is:
, Answer: gonadotropin-releasing hormone.
◉ Gametes are:
Answer: sex cells.
◉ Until ejaculation, sperm are stored in the:
Answer: epididymis.
◉ Where is testosterone produced?
Answer: Interstitial cells of the testes
◉ Which organ supplies most of the fluid volume of semen?
Answer: Seminal vesicles
◉ The surge in which hormone causes ovulation?
Answer: Luteinizing hormone
◉ An embryo attaches to which layer of the uterine wall?
Answer: Endometrium
◉ Falling levels of which two hormones trigger menstruation?
Answer: Estrogen and progesterone
PHYSIOLOGY EXAM 3 PRACTICE TEST 2026
FULL SOLUTIONS REVIEW PACK
◉ The genetic information in male offspring is:
Answer: inherited from both the father and the mother.
◉ Female offspring result when:
Answer: a sperm with an X chromosome fertilizes the egg.
◉ An alternative form of a gene is called:
Answer: an allele.
◉ Which of the following statements about alleles is correct?
Answer: An individual may have two alleles that are the same or two
alleles that are different.
◉ Which of the following statements about sex-linked inheritance is
correct?
Answer: Almost all of the sex-linked traits are carried on the X
chromosome and are recessive.
,◉ Most common chromosomal abnormalities result when:
Answer: homologous chromosomes fail to separate during
meiosis.
◉ The fertilized egg is at which stage when it implants in the uterus?
Answer: Blastocyst
◉ How long can sperm remain viable within the female reproductive
tract?
Answer: As long as 6 days
◉ What is the significance of the embryotic disc?
Answer: It gives rise to the three germ layers.
◉ Which is a function of the yolk sac?
Answer: Supply the fetus with nutrients
◉ During the first 2 months of pregnancy, what is the source of
estrogen and progesterone?
Answer: Corpus luteum
,◉ During which stage of pregnancy is the developing fetus most
vulnerable to toxins, stress, drugs, and nutritional deficiencies?
Answer: First trimester
◉ What is the function of the foramen ovale?
Answer: Divert blood from the right to the left atrium
◉ Fertilization normally occurs in the:
Answer: fallopian tube.
◉ At which point is the product of conception called a fetus?
Answer: After the organs are formed
◉ Which hormone is responsible for the production of milk in the
mammary glands?
Answer: Prolactin
◉ What characteristic of umbilical cord blood makes it useful in
treating certain diseases?
Answer: It contains an abundance of stem cells.
◉ The first hormone secreted at the onset of puberty in both males
and females is:
, Answer: gonadotropin-releasing hormone.
◉ Gametes are:
Answer: sex cells.
◉ Until ejaculation, sperm are stored in the:
Answer: epididymis.
◉ Where is testosterone produced?
Answer: Interstitial cells of the testes
◉ Which organ supplies most of the fluid volume of semen?
Answer: Seminal vesicles
◉ The surge in which hormone causes ovulation?
Answer: Luteinizing hormone
◉ An embryo attaches to which layer of the uterine wall?
Answer: Endometrium
◉ Falling levels of which two hormones trigger menstruation?
Answer: Estrogen and progesterone
