I am working on reconstructing the phylogenetic history of North American squirrels. I decide to use teat number as a character (trait) for inferring their phylogeny. I do some research into other squirrels and mammals and discover the following: • Mammals and other squirrels only have even numbers of teats. • Teat number appears to be unrelated to any other morphologic trait. • The MRCA of all mammals, and therefore all squirrels, also had teats. Which of the following characteristics (either required of traits used in phylogenetic reconstruction, or desired) does teat number appear to have? Choose all that apply. It's mutation rate is known or estimable It is homolgous rather than analagous It is discrete It is analagous rather than homologous It is quantifiable It is independent of other traits It is DNA sequence data

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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I am working on reconstructing the phylogenetic
history of North American squirrels. I decide to use
teat number as a character (trait) for inferring their
phylogeny. I do some research into other squirrels
and mammals and discover the following:
• Mammals and other squirrels only have even numbers
of teats.
Teat number appears to be unrelated to any other
morphologic trait.
• The MRCA of all mammals, and therefore all squirrels,
also had teats.
Which of the following characteristics (either
required of traits used in phylogenetic
reconstruction, or desired) does teat number appear
to have? Choose all that apply.
It's mutation rate is known or estimable
O It is homolgous rather than analagous
It is discrete
It is analagous rather than homologous
OIt is quantifiable
It is independent of other traits
It is DNA sequence data
Transcribed Image Text:I am working on reconstructing the phylogenetic history of North American squirrels. I decide to use teat number as a character (trait) for inferring their phylogeny. I do some research into other squirrels and mammals and discover the following: • Mammals and other squirrels only have even numbers of teats. Teat number appears to be unrelated to any other morphologic trait. • The MRCA of all mammals, and therefore all squirrels, also had teats. Which of the following characteristics (either required of traits used in phylogenetic reconstruction, or desired) does teat number appear to have? Choose all that apply. It's mutation rate is known or estimable O It is homolgous rather than analagous It is discrete It is analagous rather than homologous OIt is quantifiable It is independent of other traits It is DNA sequence data
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