Reference no: EM13923889

1. The following is a list of methods by which human conception can be postponed. Which one blocks sperm on its journey from the testicles to the fallopian tubes?
2. The quintessential (most basic/most important) moment of fertilization of the egg by the sperm cell occurs when
3. Sperm cell production occurs within the interior lining of the ______________.
4. Which of the following is a biological approach to determining when a mother and her conceptus become separate individuals?
5. About the time of ____________, male genetic information from the sperm begins to be translated into protein products. This is used by some to determine when a mother and her conceptus become separate individuals.
6. Once the mature follicle is the correct size, the estrogen level in the bloodstream causes the pituitary gland to suddenly secrete high levels of _________ causing the mature follicle to rupture from the ovary surface.
7. For about half of a woman's monthly cycle, the hormone ________ leaves the pituitary gland and, at the ovary, signals it to bring a more advanced _________ to complete maturity.
8. Penetration of the egg' zona pellucida by the sperm cell is a process driven by
9. The reproductive system uses the hormones ________ and (later on) ____________ to "think ahead". They guide the preparation of the uterus for its role in supporting pregnancy.
10. A mature follicle has formed which of the following structures?
11. In the human life cycle, diploid cells undergo a cell division process called __________. The resulting haploid cells later fuse during ___________ which regenerates diploid cells.
12. One disadvantage of sexual reproduction is
13. Which of the following is an example of asexual reproduction in plants?
14. Meiotic Prophase I is different from a mitotic prophase. In meiotic prophase
15. The process of meiosis generates genetic variability in the resulting sex cells (gametes). It does this by
16. The stage of meiosis in which the centromere of each chromosome can first be seen to be attached to two sister chromatids:
17. Dilation of the cervix is a chemical procedure that
18. Which of the following different methods by which human conception can be postponed involves altering the hormonal chemistry of the female partner?
19. The stages of meiosis are
20. In Iris plants asexual reproduction results from
21. Which of the following birth control methods is primarily contraceptive and secondarily abortive in its effects?
22. Aristotle, the "Father of Biology", believed that a human being became a person
23. Meiosis generates genetic variability in the resulting sex cells (gametes). For each of 23 pairs of chromosomes, the haploid egg cell
24. Peter Singer and other self-oriented societal pragmatists would define the term "person" as someone who
25. The specialized process that halves the number of chromosomes during sex cell formation is named
26. What process prevents one's children from looking exactly like either parent?
27. If 100 sperm cells reach an egg, how does the egg respond such that only one sperm cell effectively fertilizes it? As soon as a sperm cell touches the egg's plasma membrane
28. Which sequence below traces in the correct order the path of a sperm to the egg it fertilizes
29. Which cell division in meiosis is most like mitosis
30. How long does it normally take from the time of fertilization to the time of gestation
31. Which male accessory gland of the male reproductive system provides protection for sperm while in the harsh acidic female reproductive tract
32. What is the role of luteinizing hormone (LH) in human reproduction
33. Primary germ cells migrate through ________ different regions of embryonic tissue before reaching their final site of differentiation within ovaries or testes
34. How does a primary spermatocyte differ from a primary germ cell? Primary germ cells
35. Which birth control method is potentially abortive, rather than purely contraceptive
36. In order for "sexuality" to evolve between two strains of an asexual unicellular organism, a mutation that should occur early in the process would be one that causes
37. Which of the following factors accounts for most of the propulsion needed for a sperm to meet up with an egg
38. Preformationism was the belief that an entire human being, perfectly formed but far smaller could almost be seen within the confines of the sperm cell. Which aspect of development is most ignored or minimized
39. Which of the following body systems are not significantly integrated into the process of sexual reproduction
40. In order for an asexually reproducing organism to evolve the ability to reproduce sexually, what attribute(s) would need to be acquired by mutation and selection
41. In the case of incomplete dominance, the combinations of alleles AA, Aa or aa can result in how many different phenotypes?
42. In the phenotype of an individual, a dominant allele
43. During meiosis I, both the two homologous chromosome pairs and the pairs of Mendelian alleles
44. In the cross between individuals having genotypes Aa and aa, how many kinds of offspring can emerge from this cross?
45. In a dihybrid cross the breeder is studying two _______ at a time.
46. In the karyotype of Drosophila melanogaster and most other organisms as well, the pairs of chromosomes not involved in determining the sex of the organism are called
47. In Mendel's approach to plant breeding he was a(n) ___________; this term indicates that his questions were answered by good observations and experiments.
48. When male and female flies are crossed to each other, the X chromosome that is in half of the male fly's sex cells (sperm)
49. During the formation of an individual's sex cells, pairs of alleles come apart. This principle is
50. Which of the following choices would best describe the phenotype of a Bb individual?
51. If two genes are linked they will
52. Which of the following choices would best describe the genotype of a Bb individual?
53. Mendel's experimental approach to plant breeding resulted in
54. In epistasis, the phenotype produced by the alleles of one gene locus
55. In sex cell formation, Mendel's second law (independent assortment) works because
56. In a cross between individuals of genotype TtYy and ttyy, sex cells from the ttyy individual will all have t and y alleles. So they will reveal whatever alleles are present in any sex cell coming from the other parent-whether TY, tY, Ty or ty. So, how many different phenotypes can result from this cross? (TtYy X ttyy)
57. A bb individual is ___________ for a __________ allele.
58. Mendel's view of plant breeding that resulted in the discovery of his laws could best be described by the principle
59. In the phenomenon of co-dominance in blood types, two or more different alleles are ___________ while another allele is ____________ because it is not expressed at all.
60. The karyotype of Drosophila melanogaster contains 4 pairs of homologous ___________.
61. In pea plants, the allele controlling tallness (T) is completely dominant over its alternative allele controlling shortness (t). Which of the following crosses will yield short (tt) and heterozygous tall (Tt) pea plants in approximately equal numbers?
62. Mendel's approach to plant breeding resulted in the discovery of his laws because he
63. When two individuals, both with genotype RrYy are crossed to each other, all possible genotypic combinations are produced in the offspring: RRYY, RRYy, RRyy, RrYY, RrYy, Rryy, rrYY, rrYy and rryy. Score each genotype's phenotype to determine how many visible kinds of offspring--phenotypes-do these 9 genotypes represent?
64. Genes that are on opposite ends of the same long chromosome will probably
65. The appearance of a trait is referred to as its