 |
| 1 | |
Match the type of asexual reproduction on the left with the appropriate description on the right.
| i: parthenogenesis | a) sperm unites with egg | | ii: regeneration | b) development of offspring from unfertilized egg | | iii:fertilization | c) development of offspring from a "piece" of parent |
|
| | A) | i = c; ii = a; iii = b |
| | B) | i = b; ii = c; iii = a |
| | C) | i = c; ii = b; iii = a |
| | D) | i = a; ii = c; iii = b |
| | E) | i = b; ii = a; iii = c |
|
|
|
| 2 | |
Zygotes are formed from which of the following processes? |
| | A) | Parthogenesis |
| | B) | Regeneration |
| | C) | Fertilization |
| | D) | Parthogenesis and regeneration |
| | E) | Parthogenesis, regeneration, and fertilization |
|
|
|
| 3 | |
Leydig cells are specialized to produce |
| | A) | semen. |
| | B) | testosterone. |
| | C) | oogonia. |
| | D) | estrogen. |
| | E) | spermatogonia. |
|
|
|
| 4 | |
The first event of pregnancy in placental mammals is |
| | A) | embryonic development. |
| | B) | fertilization. |
| | C) | implantation. |
| | D) | gastrulation. |
| | E) | development of placenta |
|
|
|
| 5 | |
Which of the following is not a strategy by which animals synchronize production of offspring with favorable environmental conditions? |
| | A) | Delayed implantation |
| | B) | Seasonal breeding |
| | C) | Sperm storage |
| | D) | Delayed ovulation |
| | E) | All of the choices are strategies by which animals synchronize production of offspring with favorable environmental conditions. |
|
|
|
| 6 | |
The most common cause of infertility is |
| | A) | tumors. |
| | B) | sexually transmitted diseases. |
| | C) | undernourishment. |
| | D) | developmental disorders. |
| | E) | chronic stress. |
|
|
|
| 7 | |
Which of the following represents an advantage of sexual reproduction over asexual reproduction? |
| | A) | Reproduction can occur even during isolation from others in the species |
| | B) | All individuals in a population are capable of reproduction |
| | C) | Greater genetic variation is possible due to recombination |
| | D) | Reproduction can occur even during isolation from others in the species and all individuals in a population are capable of reproduction |
| | E) | Reproduction can occur even during isolation from others in the species, all individuals in a population are capable of reproduction, and greater genetic variation is possible due to recombination |
|
|
|
| 8 | |
Which of the following statements about hermaphroditism is incorrect? |
| | A) | Some types of hermaphroditism involve males changing into females or vice versa. |
| | B) | Some hermaphroditic species fertilize their own eggs with their own sperm. |
| | C) | Hermaphroditism is effective when sexual partners are seldom encountered, but does not provide for a means of increasing genetic diversity. |
| | D) | Most hermaphroditic species consist of individuals which exchange sperm with other individuals. |
| | E) | All of the statements about hermaphroditism are correct. |
|
|
|
| 9 | |
True or False: The process of gametogenesis in males and females is identical through the production of the primary oocytes/spermatocytes. |
| | A) | True |
| | B) | False |
|
|
|
| 10 | |
The ATP required to power the movement of a mature sperm comes from mitochondria in the |
| | A) | acrosome. |
| | B) | midpiece. |
| | C) | cytoplasm of the head. |
| | D) | nucleus. |
| | E) | tail. |
|
|
|
| 11 | |
Which of the following statements about fertilization is correct? |
| | A) | The acrosomal membrane is broken down by chemicals in the cumulus mass of the ovum. |
| | B) | Once a sperm has fertilized an egg, mechanisms exist to prevent additional sperm from fertilizing that same egg. |
| | C) | When an internally fertilized egg is packaged into a shell and laid externally, development of the embryo is referred to as oviparity. |
| | D) | Ova of a particular species produce attractants that are responded to only by sperm of that same species. |
| | E) | All of the statements about fertilization are correct. |
|
|
|
| 12 | |
Sperm complete their differentiation in the |
| | A) | vas deferens. |
| | B) | seminiferous tubule. |
| | C) | urethra. |
| | D) | epididymis. |
| | E) | uterus. |
|
|
|
| 13 | |
True or False: The neurotransmitter responsible for penile erection is nitric oxide. |
| | A) | True |
| | B) | False |
|
|
|
| 14 | |
The thick, muscular lining of the uterus is most accurately referred to as the |
| | A) | myometrium. |
| | B) | labia minora. |
| | C) | endometrium. |
| | D) | cervix. |
| | E) | labia majora. |
|
|
|
| 15 | |
Approximately how many secondary oocytes will a human female ovulate in her reproductive ? |
| | A) | 1000 to 3000 |
| | B) | 100 to 300 |
| | C) | 300 to 500 |
| | D) | 3000 to 5000 |
| | E) | 1,000,000 |
|
|
|
| 16 | |
Which of the following statements about female reproductive development is correct? |
| | A) | The portion of the ovarian cycle that occurs prior to ovulation is referred to as the follicular phase. |
| | B) | A developing secondary oocyte is surrounded by cells known as the corpus luteum. |
| | C) | The only mammalian species with females known to undergo menopause is the human. |
| | D) | The primary hormone secreted during the luteal phase of the ovarian cycle is estradiol. |
| | E) | None of the statements about female reproductive development are correct. |
|
|
|
| 17 | |
The rupture of a follicle and subsequent ovulation is directly induced by which one of the following hormones? |
| | A) | Estradiol |
| | B) | FSH |
| | C) | Progesterone |
| | D) | LH |
| | E) | GnRH |
|
|
|
| 18 | |
At which position in the placenta does the blood of the mother mix with the blood of the fetus? |
| | A) | The chorionic vilus |
| | B) | The uterine endometrium |
| | C) | The chorion |
| | D) | The umbilical cord |
| | E) | The blood of the mother does not mix with the fetal blood supply. |
|
|
|
| 19 | |
Which of the following hormones plays a direct role in parturition? |
| | A) | oxytocin |
| | B) | estradiol |
| | C) | FSH |
| | D) | Oxytocin and estradiol |
| | E) | Oxytocin, estradiol, and FSH |
|
|
|
| 20 | |
Which of the following contraception methods prevents implantation instead of preventing fertilization? |
| | A) | Condoms |
| | B) | Vaginal diaphragm |
| | C) | Intrauterine device |
| | D) | Vasectomy |
| | E) | Oral contraceptive estradiols |
|
|
.