Unit II Exam-KEY A Spr09

Unit II Exam-KEY A Spr09 - BSC 2011 UNIT II EXAM FORM A...

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UNIT II EXAM - FORM A SPRING 2008 Name, please: _____________________________________ Last 4 of SS#: _____________ Please select the choice of the single best answer to each of the following questions and mark the letter of that choice on your scantron sheet. The last 2 pages of this exam are an essay sheet and a sheet of scrap paper – everything is to be turned in, please! 1. The function of centrosomes is to ____. A. synthesize the metaphase plate B. synthesize kinetochores C. replicate chromosomes D. synthesize centromeres E. synthesize spindle microtubules 2. The law of independent assortment applies to ______ of _______. A. metaphase I of mitosis B. metaphase II of mitosis C. metaphase I of meiosis D. metaphase II of meiosis E. none of the above 3. For a particular organism, if 2n = 28, then ____ chromosomes will be present in a somatic cell and ____ chromosomes will be present in a gamete. A. 28, 14 B. 14, 28 C. 28, 56 D. 56, 28 E. 7, 14 4. For a particular organism, if 2n = 32, then there will be ___ chromatids in a somatic cell during metaphase of mitosis. A. 16 B. 32 C. 64 D. 128 E. 256 5. In diploid organisms, gametes are formed by the process of ______. A. crossing over B. fertilization C. binary fission D. mitosis E. meiosis 6. A karyotype reveals _____. A. the blood type of an individual B. the number of chromosomes in a nucleus C. the alleles that are present in a gamete D. an individual’s genotype E. an individual’s phenotype 7. The human SRY gene is _____. A. on the X chromosome and codes for a protein that initiates inactivation of an X chromosome. B. on the X chromosome and codes for a protein that initiates inactivation of a Y chromosome. C. on the X chromosome and codes for a protein needed for ovary development. D. on the Y chromosome and codes for a protein needed for testis development. E. on the Y chromosome andt codes for a protein that initiates inactivation of an X chromosome. 8. A Barr body can be found in which of the following? A. an egg cell B. a sperm cell C. a male’s liver cell D. a female’s liver cell E. any of these 9. Synapsis of homologous chromosomes occurs during ____. A.
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This note was uploaded on 04/01/2012 for the course BSC BSC2011 taught by Professor Spears during the Spring '10 term at FSU.

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Unit II Exam-KEY A Spr09 - BSC 2011 UNIT II EXAM FORM A...

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