Term
| Which of the following describes the three events in sperm production, from just after meiosis to deposition in the female reproductive tract? |
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Definition
| maturation, storage and transfer, delivery |
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Term
| The _____________ is the site of gamete production in human females. |
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Definition
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Term
| What is the most reliable signal that a woman is about to give birth? |
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Definition
| dilation of the cervix up to about 10 cm |
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Term
| In humans, as well as mammals, birds, and reptiles, the growing embryo is surrounded by a water-filled chamber to keep it wet and to provide insulation and protection. What is this name of the membrane that surrounds this chamber? |
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Definition
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Term
| Which of the following is a known evolutionary adaptation arising from sperm competition? |
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Definition
| Both a) and b) are known evolutionary adaptations arising from sperm competition. |
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Term
| Which of the following is found in nearly all mammals? |
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Definition
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Term
| Tying off the vas deferens will: |
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Definition
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Term
| Which of the following is NOT generally correct about the difference between egg and sperm in sexually reproducing animals? |
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Definition
| Eggs have more chromosomes than do sperm. |
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Term
| In which part of a sperm cell can mitochondria be found? |
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Definition
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Term
| Which of the following is TRUE about reproductive-related technology? |
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Definition
| Sperm can be sorted in the laboratory into those containing an X or a Y |
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Term
| The three embryonic germ layers formed during gastrulation are the: |
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Definition
| ectoderm, endoderm, and mesoderm. |
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Term
| Your lungs are derived from which of the following embryonic germ layers? |
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Definition
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Term
| What process allows sperm to penetrate the zona pellucida surrounding the mature egg just before fertilization? |
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Definition
| sperm bind to the zona pellucida, triggering the egg response to open its membrane like a gate |
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Term
| A disadvantage of asexual reproduction is that: |
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Definition
| it results in less genetic variation in a population. |
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Term
| Which of the following is the correct description of a polar body that arises during oogenesis in humans? |
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Definition
| It is a haploid cell containing very little cytoplasm. |
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Term
| In what way does egg production differ from sperm production in humans? |
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Definition
| Each egg is considerably larger than a sperm. |
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Term
| What triggers the onset of menstruation in women? |
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Definition
| falling levels of estrogen and progesterone in the bloodstream |
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Term
| During ovulation in human females, the mature egg is released from the ________, travels through the ________ where fertilization occurs, and embeds in the ________. |
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Definition
| follicle, Fallopian tube, uterus |
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Term
| Which of the following statements is true about external fertilization in most species? |
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Definition
| All of the above are true. |
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Term
| Individuals who carry two X chromosomes plus the SRY gene (through recombination in meiosis in their father's sperm), are: |
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Definition
| infertile males with smaller than average testes |
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