Question 71
(Multiple Choice)
Use the following information to answer the questions below.
A plant-like organism on the planet Pandora has 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,when a geneticist did a testcross with an organism that had been found to be heterozygous for the three recessive traits,she was able to identify progeny with the following phenotypic distribution (+ = wild type):
-In which progeny phenotypes has there been recombination between genes A and B?
A)1, 2, 5, and 6
B)1, 3, 6, and 7
C)2, 4, 5, and 8
D)2, 3, 5, and 7
E)in all 8 of them
Answer