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GS102 Grantham Week 3 Life Science Quiz Help

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Genetics

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Grantham University

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Results Displayed All Answers, Submitted Answers, Correct Answers, Feedback • Question 1 5 out of 5 points If an organism’s diploid chromosome number is 18, how many different possible combinations of homologous chromosomes lining up during meiosis exist for the eggs or sperm produced by that organism? Selected Answer: A. 512 Answers: A. 512 B. 18 C. 36 D. 128 E. 9 • Question 2 5 out of 5 points Cytokinesis in plant cells differs from cytokinesis in animal cells because Selected Answer: D. plant cells have a rigid cell wall. Answers: A. there is no difference. B. the contractile protein, actin, is important only in plant cells. C. a contractile ring forms only in plant cells. D. plant cells have a rigid cell wall. E. in plant cells, the cell plate must also divide into two parts. • Question 3 5 out of 5 points Tall corn plants (T) are dominant to dwarf plants (tt). Solid green leaves (G) are dominant to leaves with a white tip (gg). A cross between two corn plants yielded the following phenotypes: 51 tall plants with a white tip on their leaves; 43 dwarf plants with solid leaves; 48 dwarf plants with white tips on their leaves; 45 tall plants with solid leaves. What are the genotypes of the parents that produced these plants? Selected Answer: D. TtGg x ttgg Answers: A. TtGg x TtGg B. None of the above C. TtGg x Ttgg D. TtGg x ttgg E. ttGG x TTgg • Question 4 5 out of 5 points If you view a cell in which the genetic material is begin ...
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