Liberty University BIOL 101 Quiz 6 Complete Solutions Correct Answers Key

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Liberty University BIOL 101Quiz 6 Complete Solutions Correct Answers KeyMore than two versionsThe following is a list of methods by which human conception can be postponed. Which oneblocks sperm on its journey from the testicles to the fallopian tubes?The quintessential (most basic/most important) moment of fertilization of the egg by thesperm cell occurs whenSperm cell production occurs within the interior lining of the ______________.Which of the following is a biological approach to determining when a mother and herconceptus become separate individuals?About the time of ____________, male genetic information from the sperm begins to betranslated into protein products. This is used by some to determine when a mother and herconceptus become separate individuals.Once the mature follicle is the correct size, the estrogen level in the bloodstream causes thepituitary gland to suddenly secrete high levels of _________ causing the mature follicle torupture from the ovary surface.For about half of a woman’s monthly cycle, the hormone ________ leaves the pituitary glandand, at the ovary, signals it to bring a more advanced _________ to complete maturity.Penetration of the egg’ zona pellucida by the sperm cell is a process driven byThe reproductive system uses the hormones ________ and (later on) ____________ to “thinkahead”. They guide the preparation of the uterus for its role in supporting pregnancy.A mature follicle has formed which of the following structures?In the human life cycle, diploid cells undergo a cell division process called __________. Theresulting haploid cells later fuse during ___________ which regenerates diploid cells.One disadvantage of sexual reproduction isWhich of the following is an example of asexual reproduction in plants?Meiotic Prophase I is different from a mitotic prophase. In meiotic prophaseThe process of meiosis generates genetic variability in the resulting sex cells (gametes). Itdoes this byThe stage of meiosis in which the centromere of each chromosome can first be seen to beattached to two sister chromatids:Dilation of the cervix is a chemical procedure that

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Which of the following different methods by which human conception can be postponedinvolves altering the hormonal chemistry of the female partner?The stages of meiosis areIn Iris plants asexual reproduction results fromWhich of the following birth control methods is primarily contraceptive and secondarilyabortive in its effects?Aristotle, the “Father of Biology”, believed that a human being became a personMeiosis generates genetic variability in the resulting sex cells (gametes). For each of 23 pairsof chromosomes, the haploid egg cellPeter Singer and other self-oriented societal pragmatists would define the term “person” assomeone whoThe specialized process that halves the number of chromosomes during sex cell formation isnamedWhat process prevents one’s children from looking exactly like either parent?If 100 sperm cells reach an egg, how does the egg respond such that only one sperm celleffectively fertilizes it?As soon as a sperm cell touches the egg’s plasma membraneWhich sequence below traces in the correct order the path of a sperm to the egg it fertilizesWhich cell division in meiosis is most like mitosisHow long does it normally take from the time of fertilization to the time ofgestationWhich male accessory gland of the male reproductive system provides protection for spermwhile in the harsh acidic female reproductive tractWhat is the role of luteinizing hormone (LH) in human reproductionPrimary germ cells migrate through ________ different regions of embryonic tissue beforereaching their final site of differentiation within ovaries or testesHow does a primary spermatocyte differ from a primary germ cell?Primary germ cellsWhich birth control method is potentially abortive, rather than purely contraceptiveIn order for “sexuality” to evolve between two strains of an asexual unicellular organism, amutation that should occur early in the process would be one that causesWhich of the following factors accounts for most of the propulsion needed for a sperm tomeet up with an egg

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Preformationism was the belief that an entire human being, perfectly formed but far smallercould almost be seen within the confines of the sperm cell.Which aspect of development ismost ignored or minimizedWhich of the following body systems are not significantly integrated into the process ofsexual reproductionIn order for an asexually reproducing organism to evolve the ability to reproduce sexually,what attribute(s) would need to be acquired by mutation and selectionIn the case of incomplete dominance, the combinations of alleles AA, Aa or aa can result inhow many different phenotypes?In the phenotype of an individual, a dominant alleleDuring meiosis I, both the two homologous chromosome pairs and the pairs of MendelianallelesIn the cross between individuals having genotypes Aa and aa, how many kinds of offspringcan emerge from this cross?In a dihybrid cross the breeder is studying two _______ at a time.In the karyotype of Drosophila melanogaster and most other organisms as well, the pairs ofchromosomes not involved in determining the sex of the organism are calledIn Mendel’s approach to plant breeding he was a(n) ___________; this term indicates that hisquestions were answered by good observations and experiments.When male and female flies are crossed to each other, the X chromosome that is in half of themale fly’s sex cells (sperm)During the formation of an individual’s sex cells, pairs of alleles come apart. This principle isWhich of the following choices would best describe the phenotype of a Bb individual?If two genes are linked they willWhich of the following choices would best describe the genotype of a Bb individual?Mendel’s experimental approach to plant breeding resulted inIn epistasis, the phenotype produced by the alleles of one gene locusIn sex cell formation, Mendel’s second law (independent assortment) works becauseIn a cross between individuals of genotype TtYy and ttyy, sex cells from the ttyy individualwill all have t and y alleles. So they will reveal whatever alleles are present in any sex cellcoming from the other parent—whether TY, tY, Ty or ty. So, how many different phenotypes

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