Clicker Questions 2010 revised

Clicker Questions 2010 revised - BIO320 Clicker Questions:...

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BIO320 2010 1 Clicker Questions: 1. Purple flower color is dominant to white. If two plants heterozygous for this trait are crossed ( Pp X Pp ), what is the probability that a purple flowered plant resulting from this cross is heterozygous ( Pp )? A. 1/2 B. 1/3 C. 2/3 D. ¼ 2. Long stems are dominant to short stems. If two plants heterozygous for this trait are crossed ( Ll X Ll ), what is the probability that a short stemmed plant resulting from this cross is homozygous ( ll )? A. 1/2 B. 1 C. 1/3 D. ¼ E. 0 3. Two heterozygous purple flowered plants were crossed and the progeny were ¾ purple: ¼ white flowered plants. If one of the purple progeny plants is crossed to a white flowered plant, what is the probability that a white flowered plant will be observed? A. ½ B. 1/3 C. 2/3 D. 1/4 4. Is this a dihybrid cross? AA Bb X Aa BB A. Yes B. No 5. In the cross Aa bb Dd X Aa bb dd , what is the probability of having offspring that are phenotypically recessive for all of the traits? A. 1/8 B. 1/16 C. 3/4 D. 3/16 E. 3/8 6. A woman with blood type AB marries a man of blood group A whose father was blood group O. What is the probability that their first child will be a daughter with blood group B?
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BIO320 2010 2 A. Not possible B. ¼ C. 1/16 D. 1/8 E. ½ 7. An agouti rabbit and a chinchilla rabbit were crossed and the resulting progeny were ½ agouti: ¼ chinchilla: ¼ white. What are the genotypes of the parents? A. Cc h X c ch c B. CC X c ch c C. c ch c h X Cc h D. Cc X c ch c 8. Montezuma fish are tropical fish with orange stripes while the wild-fish are gray without stripes. When two Montezuma fish were mated, 68 of the progeny fish exhibited the Montezuma pattern while 34 were wild type. Which of the following statements is false? A. The Montezuma pattern is likely due to a single gene. B. Montezuma fish can be either heterozygous or homozygous. C. Wild-type fish are homozygous. D. The Montezuma pattern is dominant to the wild-type pattern. 9. A man and a woman have four children, each with a different blood type, A, B, AB and O. What are the genotypes of the parents? Assume they are both HH homozygotes. A. I A I B X I A i B. I A i X ii C. I A i X I B i D. I A I A X I B I B E. I A I B X ii 10. Which of the following ratios indicates epistasis? A. 3:1 B. 1:2:1 C. 9:3:3:1 D. 9:3:4 11. The haploid number for goldfish is 47. Given that goldfish are diploid, how many chromatids are present at Metaphase I of meiosis? A. 47 B. 94 C. 188 D. 376 E. 200
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BIO320 2010 3 12. Shown below is a cell where n = 2. What type of cell is shown? A.
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Clicker Questions 2010 revised - BIO320 Clicker Questions:...

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