Chapters 9-16 cumulative for final

Last update by mayurcooled on 04/23/2014
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Use the following information to answer the questions below.

A plantlike organism on the planet Pandora can have three recessive genetic traits: bluish leaves, due to an allele (a) of gene A; a feathered stem, due to an allele (b) of gene B; and hollow roots due to an allele (c) of gene C. The three genes are linked and recombine as follows:

A geneticist did a testcross with an organism that had been found to be heterozygous for the three recessive traits and she was able to identify progeny of the following phenotypic distribution (+ = wild type):

PhenotypesLeavesStemsRootsNumber1a++ 142a+c 03ab+ 324abc 4405+b+ 06+bc 167++c 288+++ 470


Total1,000

Which of the following are the phenotypes of the parents in this cross?
Student Response Correct Answer A. 2 and 5 B. 1 and 2 C. 1 and 6 D. 4 and 8
E. 3 and 7

Answer:
D. 4 and 8

View Chapters 9-16 cumulative for final as Flashcard Deck

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