MCDB_1A_MT2_Green_2_

MCDB_1A_MT2_Green_2_ - Name _ TA _ MCDB 1A Midterm...

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Name _________________________ TA ________________________ MCDB 1A Midterm Examination I November 10, 2010 Scantron Instructions: 1. Use a #2 pencil to complete the form. 2. Write your name and fill in the appropriate bubbles. 3. Write your perm. number in the ID number box and fill in the bubbles. 4. Write the color of your test in the space underneath the ID number box. 5. Fill in the entire rectangle of the answer you choose. If you erase, erase completely READ ALL QUESTIONS THOROUGHLY----IN ALL CASES, PICK THE BEST ANSWER 33 QUESTIONS -3 POINTS EACH 1 Question Test Color ---- 1 Point 1. A skin cell in your pet dog has a total of 78 chromosomes, or 39 pairs of homologous chromosomes. Following mitosis, the daughter cells would have a total of ____ chromosomes. After meiosis I, the two daughter cells would have ____ chromosomes, and after meiosis II, each daughter cell would have ___ chromosomes. A. 78,39,39 B. 78,78,39 C. 39, 39, 39 D. 78, 39, 78 E. None of the above 2. During anaphase: A. Anaphase B movement involves microtubule motors and interpolar microtubules that lengthen, resulting in pushing apart of the poles B. The two chromatids of each chromosome remain attached to each other C. Anaphase A movement involves shortening of the interpolar (polar) microtubules D. The spindle microtubules become attached to the kinetochores E. The plus ends of the spindle microtubules become anchored to the spindle poles 3. Gene reassortment during formation of eggs and sperm occur during A. prophase of meiosis I, anaphase of meiosis I and anaphase of meiosis II B. only during prophase of meiosis I C. prophase of meiosis II, anaphase of meiosis I, and anaphase of meiosis II D. anaphase of meiosis I, prophase of meiosis II, and anaphase of meiosis II E. None of the above 4. Which one of the following pairs is mis-matched? A. absence of an important lysosomal enzyme- Tay-Sachs disease B. clathrin- coats the surface of a coated pit C. karyotype- a display of all of the chromosomes of a eukaryotic organism D. nucleosome- DNA wrapped around a core of histone proteins E. antiport- transports two molecules by passive diffusion MCDB 1A MT2 Green (2) Version: 2 Page: 1
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5. A bacterial cell gives rise to two genetically identical daughter cells by a process known as A. binary fission B. disjunction C. fertilization D. nondisjunction E. mitosis 6. During spermatogenesis, cells become haploid when they progress from a___ to a ____. A. Primary spermatocyte ; secondary spermatocyte
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This note was uploaded on 02/13/2011 for the course MCDB 1a taught by Professor Feinstein during the Fall '08 term at UCSB.

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MCDB_1A_MT2_Green_2_ - Name _ TA _ MCDB 1A Midterm...

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