A) Which statement best describes a polygenic trait? (1 point)
A polygenic trait is only controlled by one gene and influenced by the environment.
A polygenic trait is only controlled by multiple environmental factors.
A polygenic trait is only controlled by one environmental factor.
A polygenic trait is controlled by multiple genes and influenced by the environment.
A polygenic trait is controlled by multiple genes and influenced by the environment.
A) An animals weight is determined by: (1 point)
multiple genes only
multiple genes and environmental factors
a single gene only
both a single gene and environmental factors
An animal's weight is determined by multiple genes and environmental factors.
A) Which statement best describes trait distribution? (1 point)
Distribution describes the different traits that are found in a population.
Distribution describes how individuals in a population are spread across their habitat.
Distribution describes the different traits that are found in a species.
Distribution describes how the variation in traits is spread across a population.
Distribution describes how the variation in traits is spread across a population.
A)
Use the table to answer the following question.
Grade 10-12
Height
Range
55-
59
60-
64
65-
69
70-
74
Frequency 4 9 8 4
A statistician collects the following height data in inches for a school district. The statistician
says that it is a normal distribution. How did they draw this conclusion?
(1 point)
The frequencies for each height range are different.
The frequencies for the first and last height range are the same.
When graphed, the data creates a straight line.
When graphed, the data creates a bell curve