Phylogenetic Trees with Proportional Branch Lengths

question 17

Multiple Choice

Phylogenetic trees with proportional branch lengths

• A)indicate relatedness among organisms.
• B)indicate the relative number of nucleotide pair differences between groups.
• C)are constructed by comparing DNA sequences of homologous genes and calibrating this molecular clock with the fossil record.
• D)All of the above are true.
• E)indicate relatedness evolutionary time.

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Definitions:

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true, typically denoted by alpha (α).

Pilots' Union

An organization representing the collective interests of pilots, often involved in bargaining for better wages, working conditions, and safety standards.

Confidence Interval

A range of values, derived from the sample data, that is likely to contain the value of an unknown population parameter.

Hypotheses

Statements or predictions that are formulated for empirical testing, representing the initial step in the scientific method.