16. Study the table below. Organism Pair Percentage of DNA Similarity A-B 97 A-C 85 A-D 50 a. To which organism, B, C or D, is organism A most closely related? Support your answer. b. Which pair of organisms in the table is least closely related? Support your answer. c. Which pair of organisms most likely shares a recent common ancestor? Support your answer.

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter14: Biotechnology And Society
Section: Chapter Questions
Problem 11QP
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Extensive research has been done to find similarities and differences in the DNA sequences of different an-
imals. This work is very difficult and time consuming, but it can help biologists determine the evolution-
ary ancestry of a species. For example, when investigating the human genome, biologists found that about
99.5% of the DNA sequences among humans are the same. Considering the wide variety of traits in the
human population, we are a lot more similar than we are different. Humans share approximately 96% of
their DNA sequences with chimpanzees, 85% with mice, and 75% with chickens.
16. Study the table below.
Organism Pair Percentage of DNA Similarity
A-B
97
A-C
85
A-D
50
a. To which organism, B, C or D, is organism A most closely related? Support your answer.
b. Which pair of organisms in the table is least closely related? Support your answer.
c. Which pair of organisms most likely shares a recent common ancestor? Support your answer.
4
POGIL™ Activities for High School Biology
Transcribed Image Text:Read This! Extensive research has been done to find similarities and differences in the DNA sequences of different an- imals. This work is very difficult and time consuming, but it can help biologists determine the evolution- ary ancestry of a species. For example, when investigating the human genome, biologists found that about 99.5% of the DNA sequences among humans are the same. Considering the wide variety of traits in the human population, we are a lot more similar than we are different. Humans share approximately 96% of their DNA sequences with chimpanzees, 85% with mice, and 75% with chickens. 16. Study the table below. Organism Pair Percentage of DNA Similarity A-B 97 A-C 85 A-D 50 a. To which organism, B, C or D, is organism A most closely related? Support your answer. b. Which pair of organisms in the table is least closely related? Support your answer. c. Which pair of organisms most likely shares a recent common ancestor? Support your answer. 4 POGIL™ Activities for High School Biology
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