Biology 93 Final Review LARC

Biology 93 Final Review LARC - 1 Biology 93 Final Review...

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1 Biology 93 Final Review (compiled from Campbell Biology 7 th Edition CD Chapter Quizzes) 1. Cell divisions called _____ proceed so rapidly in the developing embryo that there is no growth of the cells between divisions. (47.1) a. meiosis b. binary fission c. cleavage d. fragmentation e. none of the above 2. What is a locus? (13.1) a. the precise location of a gene on a chromosome b. a structure that appears during prophase I and consists of two paired genes c. the precise DNA sequence of a gene d. a type of spore made only by fungi e. a cell with two chromosome sets 3. When RNA is being made, the RNA base _____ always pairs with the base _____ in DNA. (17.1) a. U . .. T b. T . .. G c. U . .. A d. A . .. U e. T . .. A 4. Wild type refers to _____. (15.1) a. the most common phenotype in the natural population b. the most extreme mutant phenotype observed in an experiment c. any mutant genotype d. a kind of chromosomal deletion e. extranuclear genes 5. During gastrulation, the primitive _____ forms. (47.1) a. eye b. gut c. nervous system d. heart e. none of the above 6. Which of the following results in cells that contain half the parental chromosome number? (13.2) a. cytokinesis b. mitosis c. meiosis d. interphase e. metaphase 7. The digits of a developing vertebrate limb respond to molecules that establish an anterior-posterior axis. These molecules originate in _____. (47.3) a. the zone of polarizing activity (ZPA) b. a specialized cluster of cells called Sonic hedgehog c. the apical epidermal ridge (AER) d. the primary organizer e. the gray crescent 8. The part of a neuron that carries nerve impulses toward the cell body is called _____. (48.1) a. a nerve b. white matter c. a neurotransmitter d. a dendrite e. an axon 9. The law of independent assortment _____. (14.1) a. states that the alleles at different loci segregate independently from one another during a dihybrid cross b. can account for a 9:3:3:1 ratio seen in the F2 generation c. applies only to genes that are present on different chromosomes (or behave as if they were) d. The first and second answers are correct. e. The first, second, and third answers are correct. 10. Gene therapy involves _____. (20.5) a. adding a functioning version of a defective gene to the cells of an individual
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2 b. allowing individuals to follow the natural progression of a genetic disorder, accompanied by psychological counseling, then drug treatment when the condition becomes life-threatening c. no serious ethical questions d. replacing organs affected with genetic disorders by transplants e. all of the above 11. At each end of a DNA replication bubble is _____. (16.2) a. an origin of replication b. a gene c. a telomere d. a replication fork e. a ribosome 12. What is the embryonic origin of the lining of the digestive tube? (47.1) a. endoderm b. ectoderm c. mesoderm d. both endoderm and mesoderm e. all three germ layers 13. The egg (ovum) of a rabbit contains 22 chromosomes. How many chromosomes are in the somatic (body) cells of a rabbit?
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Biology 93 Final Review LARC - 1 Biology 93 Final Review...

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