Doc-29006 - Unit Three Genetics Chapter 13 MULTIPLE CHOICE...

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Unformatted text preview: Unit Three: Genetics Chapter 13 - MULTIPLE CHOICE . Choose the one alternative that best completes the statement or answers the question. 1) What is a genome? A) a specific sequence of polypeptides within each cell B) the complete complement of an organism's genes C) a specialized polymer of four different kinds of monomers D) a specific segment of DNA that is found within a prokaryotic chromosome E) an arrangement of our chromosomes from largest to smallest 2) If the liver cells of an animal have 24 chromosomes, its sperm cells would have how many chromosomes? A) 12 B) 6 C) 48 D) 24 3) Which of the following is true of a species with a chromosome number of 2n = 16? A) A gamete from this species has 8 chromosomes. B) There are 16 homologous pairs. C) The species is diploid with 32 chromosomes. D) The species has 16 sets of chromosomes. E) During the S phase of the cell cycle there will be 32 separate chromosomes. 4) What is a karyotype? A) the phenotype of an individual B) a system of classifying cell nuclei C) the genotype of an individual D) a display of homologous chromosomes of a cell organized in relation to their number, size, and type E) a unique combination of chromosomes found in a gamete 5) Which of the following is the term for a human cell that contains 22 pairs of autosomes and two X chromosomes? A) a male somatic cell B) a female somatic cell C) an unfertilized egg cell D) a sperm cell E) Both A and D are correct. 6) In animals, meiosis results in gametes, and fertilization results in A) clones. B) spores. C) zygotes. D) sporophytes. E) somatic cells. 7) The X and the Y chromosomes are called sex chromosomes because A) females have X chromosomes and males have Y chromosomes. B) the number of Y chromosomes determines the sex of the individual. C) they are present only when cells undergo meiosis. D) genes located on these chromosomes play a role in determining the sex of the individual. E) they are formed only as a result of fertilization. 8) Syngamy occurs between A) one haploid and one diploid cell. B) autosomes. C) gametes. D) homologous chromosomes. E) karyotypes. 9) At which stage of mitosis are chromosomes photographed in the preparation of a karyotype? A) metaphase B) prophase C) anaphase D) telophase E) interphase 10) Referring to a plant sexual life cycle, which of the following terms describes the process that leads directly to the formation of gametes? A) gametophyte mitosis B) sporophyte meiosis C) sporophyte mitosis D) gametophyte meiosis 11) All of the following are functions of meiosis in plants except A) production of identical daughter cells. B) independent assortment of chromosomes. C) production of spores. D) crossing over and recombination of homologous chromosomes....
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Doc-29006 - Unit Three Genetics Chapter 13 MULTIPLE CHOICE...

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