Worksheet+6 - My Name Is I am registered in Discussion D...

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I am registered in Discussion D-__ that meets On ____(Day ) at ____ am/pm 1) A plant with purple flowers is allowed to self-pollinate. Generation after generation, it produces purple flowers. This is an example of A) hybridization. B) incomplete dominance. C) true-breeding. D) the law of segregation. E) polygenetics. 2) Which of the following statements about Mendel's breeding experiments is correct ? A) None of the parental (P) plants were true-breeding. B) All of the F 2 progeny showed a phenotype that was intermediate between the two parental (P) phenotypes. C) Half of the F 1 progeny had the same phenotype as one of the parental (P) plants, and the other half had the same phenotype as the other parent. D) All of the F 1 progeny resembled one of the parental (P) plants, but only some of the F 2 progeny did. E) none of the above 3) The F 1 offspring of Mendel's classic pea cross always looked like one of the two parental varieties because A) one allele was completely dominant over another. B) each allele affected phenotypic expression. C) the traits blended together during fertilization. D) no genes interacted to produce the parental phenotype. E) different genes interacted to produce the parental phenotype. 4) What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants? A) There is considerable genetic variation in garden peas. B) Traits are inherited in discrete units, and are not the results of "blending." C) Recessive genes occur more frequently in the F 1 than do dominant ones. D) Genes are composed of DNA. E) An organism that is homozygous for many recessive traits is at a disadvantage. 5) What is genetic cross between an individual showing a dominant phenotype (but of unknown genotype) and a homozygous recessive individual called? A) a self-cross B) a testcross C) a hybrid cross D) an F 1 cross 6) How many unique gametes could be produced through independent assortment by an individual with the genotype AaBbCCDdEE? A) 4 B) 8 C) 16 D) 32 E) 64 7) Black fur in mice ( B ) is dominant to brown fur ( b ). Short tails ( T) are dominant to long tails (t). What fraction of the progeny of the cross BbTt × BBtt will have black fur and long tails? A) 1/16
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This note was uploaded on 07/27/2008 for the course BIO SCI 05115 taught by Professor Mcnulty during the Summer '08 term at UC Irvine.

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Worksheet+6 - My Name Is I am registered in Discussion D...

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