Exam 2 with answers

Exam 2 with answers - Botany 130 Exam 2 March 10, 2006...

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B C D Bact. Plants Archea E Botany 130 Exam 2 March 10, 2006 Please give the single best answer for each question. The questions are designed to have only one right answer, or at least one that is much, much better than the alternatives. I have tried to make each question clear. Many of the incorrect choices will be phrases you heard in lecture. Read each question carefully. There are 50 questions and four pages to this exam. 1) During the S phase of the cell cycle a) the number of chromosomes is doubled. b) the nuclear envelope disappears. c) crossing over occurs. d) the amount of DNA per cell is doubled. 2) Mitosis describes a) how cells reproduce to make complex organisms. b) reproduction of chromosomes. c) preparation for fertilization and reshuffling of genes. d) reproduction of the nucleus of eukaryotic cells. 3) Meiosis describes a) how cells reproduce to make complex organisms. b) reproduction of chromosomes. c) preparation for fertilization and reshuffling of genes. d) reproduction of the nucleus of eukaryotic cells. 4) When the chromosomes are visible and lined up in the middle of the cell, this is called a) interphase. b) prophase. c) metaphase . d) telophase. e) anaphase. 5) Cytokinesis describes a) movement of cells in preparation for division. b) a plant hormone that stimulates cell division. c) cellular reproduction in prokaryotes. d) dividing a cell into two, normally after mitosis. True or false 6) Dominant traits are on genes that suppress the promoters of recessive traits F 7) Some plants avoid inbreeding by having a special compatibility gene called the S locus. If the pollen and the style have the same allele, the pollen stops growing and will not fertilize the flower. T 8) If two genes are on different chromosomes, they will never show linkage with each other. T On the tree at the right, identify when the following evolved. 9)
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This note was uploaded on 03/30/2008 for the course BOTANY 130 taught by Professor Sharkey during the Spring '08 term at Wisconsin.

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Exam 2 with answers - Botany 130 Exam 2 March 10, 2006...

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