![]() ![]() segregation of alleles of unlinked genesĮ. C Which of the following events occurs during prophase I of meiosis?ī. by allowing recombination of alleles on a chromosomeĮ. by allowing the combination of chromosomes from two different individualsĬ. by producing gametes with different combinations of parental chromosomesī. half the haploid number E How does the sexual life cycle increase the genetic variation in a species?Ī. prophase I and anaphase I A If the liver cells of an animal have 24 chromosomes, the sperm cells would have how many chromosomes?Į. E The phases of meiosis that cause the most variation in the four resulting daughter cells areĮ. they are formed only as a result of fertilization. genes located on the chromosomes play a role in determining the sex of the individual.ĭ. they are present only when cells undergo meiosis.Ĭ. females have X chromosomes and males have Y chromosomes.ī. diploid cells C The X and the Y chromosomes are called sex chromosomes becauseĪ. during metaphase of mitosis A In animals, somatic cells result from mitosis and_result from meiosisĮ. ![]() during fertilization or fusion of gametesĮ. making an RNA copy of a DNA strand A When does a synapsis occur?ī. the exchange of homologous portions of nonsister chromatids.Į. the movement of genetic material from one chromosome to a nonhomologous chromosome.ī. Independent assortment has the possibility of producing _ different gametes.Ī. C In humans, the haploid number of chromosomes is 23. D Regions where nonsister chromatids cross are called A. division of cell's cytoplasm B Centrioles separate duringĮ. transfer of genetic material via sex pili.Į. exchange of homologous regions of nonsister chromatids.Ĭ. sister chromatids separate and migrate towards opposite poles.Į. homologues separate and migrate towards opposite poles.ī. ![]()
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