Classical Genetics Unit Quiz_do202

Classical Genetics Unit Quiz_do202 - From null

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Started: Submitted: Score: Points: Points: 10 out of 10 Points: 0 out of 10 Points: 10 out of 10 From: null <Saved by Internet Explorer 11> Date: Wed, 16 Sep 2015 09 44 54 -0500 To: CC: Subject:Classical Genetics Unit Quiz Classical Genetics Unit Quiz Attempt 2 of 2 09/16/2015 10:10 PM EDT 09/16/2015 10:43 PM EDT 79% 150 out of 190 Question 1 Plum gametes have 24 chromosomes. How many chromosomes would a zygote have? A. 12 B. 24 C. 36 D. 48 Feedback Correct. The zygote would get the 24 chromosomes from the egg and the 24 chromosomes from the sperm. Question 2 A nucleus is built around chromatids which have separated. This occurs during which stage of meiosis? A. Telophase II B. Telophase I C. Metaphase II D. Metaphase I Feedback Incorrect. Nuclei are not built during metaphase. Question 3 In humans tongue rolling (T) is dominant to non-rolling (t). Two heterozygous individuals have a child. What is the probability that their child will be able to roll its tongue? A. 100% B. 75% C. 0% D. 50%
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Points: 10 out of 10 Points: 10 out of 10 Points: 10 out of 10 Points: 10 out of 10 Feedback Correct. The male and female are both Tt. So, there is a 75% chance that the child will receive at least one T allele. Question 4 Which of these discusses genotypes rather than phenotypes. A. The offspring of these flowers can be either red or white. B. The male mouse is homozygous dominant. C. Lactose intolerance can be due to a missing protein (the enzyme that digests lactose).
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