L, R, P and D are four genes located on the same chromosome in a diploid organism. Map distances between different pairs of genes were determined and the following results obtained. Based on these data, what is the order of the genes on the chromosome? D-R: 35 CM P-D: 5 CM L-R: 10 CM D-P: 30 CM D-L 25 CM P-R: 40 CM Note that only one orientation of the order is given as an answer choice. For example: ABCD has the same order as DCBA, but only ABCD would be listed as a possible answer. So be sure to check both orientations when comparing your gene order to the possible answer choices. D-L-P-R P-D-L-R P-R-D-L L-P-R-D R-L-D-P

Human Biology (MindTap Course List)
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ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter20: Chromosomes And Human Genetics
Section: Chapter Questions
Problem 3CT: People with Down syndrome have an extra copy of chromosome 21, for a total of 47 chromosomes....
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L, R, P and D are four genes located on the same chromosome in a diploid
organism. Map distances between different pairs of genes were determined and
the following results obtained. Based on these data, what is the order of the
genes on the chromosome?
D-R: 35 CM
P-D: 5 CM
L-R: 10 CM
D-P: 30 CM
D-L 25 CM
P-R: 40 CM
Note that only one orientation of the order is given as an answer choice. For
example: ABCD has the same order as DCBA, but only ABCD would be listed
as a possible answer. So be sure to check both orientations when comparing
your gene order to the possible answer choices.
D-L-P-R
P-D-L-R
P-R-D-L
L-P-R-D
R-L-D-P
Transcribed Image Text:L, R, P and D are four genes located on the same chromosome in a diploid organism. Map distances between different pairs of genes were determined and the following results obtained. Based on these data, what is the order of the genes on the chromosome? D-R: 35 CM P-D: 5 CM L-R: 10 CM D-P: 30 CM D-L 25 CM P-R: 40 CM Note that only one orientation of the order is given as an answer choice. For example: ABCD has the same order as DCBA, but only ABCD would be listed as a possible answer. So be sure to check both orientations when comparing your gene order to the possible answer choices. D-L-P-R P-D-L-R P-R-D-L L-P-R-D R-L-D-P
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