The statement that best describes a polygenic trait is:
A polygenic trait is controlled by multiple genes and influenced by the environment.
Which statement best describes a polygenic trait?(1 point)
Responses
A polygenic trait is only controlled by one environmental factor.
A polygenic trait is only controlled by one environmental factor.
A polygenic trait is only controlled by one gene and influenced by the environment.
A polygenic trait is only controlled by one gene and influenced by the environment.
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 polygenic trait is only controlled by multiple environmental factors
9 answers
An animals weight is determined by:(1 point)
Responses
multiple genes and environmental factors
multiple genes and environmental factors
a single gene only
a single gene only
multiple genes only
multiple genes only
both a single gene and environmental factor
Responses
multiple genes and environmental factors
multiple genes and environmental factors
a single gene only
a single gene only
multiple genes only
multiple genes only
both a single gene and environmental factor
The best response is:
multiple genes and environmental factors.
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)
Responses
When graphed, the data creates a bell curve.
When graphed, the data creates a bell curve.
The frequencies for each height range are different.
The frequencies for each height range are different.
The frequencies for the first and last height range are the same.
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 straight line.
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)
Responses
When graphed, the data creates a bell curve.
When graphed, the data creates a bell curve.
The frequencies for each height range are different.
The frequencies for each height range are different.
The frequencies for the first and last height range are the same.
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 straight line.
The correct response is:
When graphed, the data creates a bell curve.
Which is true concerning the distribution of height in human populations?(1 point)
Responses
Most individuals will be at the extremes of height.
Most individuals will be at the extremes of height.
Most individuals will be above average height.
Most individuals will be above average height.
Most individuals will be of average height.
Most individuals will be of average height.
Most individuals will be below average height.
Most individuals will be below average height.
Responses
Most individuals will be at the extremes of height.
Most individuals will be at the extremes of height.
Most individuals will be above average height.
Most individuals will be above average height.
Most individuals will be of average height.
Most individuals will be of average height.
Most individuals will be below average height.
Most individuals will be below average height.
The correct response is:
Most individuals will be of average height.
Analyzing Data About Traits Quick Check
5 of 55 of 5 Items
Question
In pea plants, the flower color may be either purple or white. Only one purple gene is needed for that color to show, while two copies of the white gene are needed for it to show. Which statement uses the correct terminology to describe how flower color is determined in pea plants?(1 point)
Responses
The flower color trait in pea plants has incomplete dominance.
The flower color trait in pea plants has incomplete dominance.
The flower color trait in plants is recessive.
The flower color trait in plants is recessive.
The flower color trait in pea plants is dominant.
The flower color trait in pea plants is dominant.
The flower color trait in pea plants can be dominant or recessive.
The flower color trait in pea plants can be dominant or recessive.
5 of 55 of 5 Items
Question
In pea plants, the flower color may be either purple or white. Only one purple gene is needed for that color to show, while two copies of the white gene are needed for it to show. Which statement uses the correct terminology to describe how flower color is determined in pea plants?(1 point)
Responses
The flower color trait in pea plants has incomplete dominance.
The flower color trait in pea plants has incomplete dominance.
The flower color trait in plants is recessive.
The flower color trait in plants is recessive.
The flower color trait in pea plants is dominant.
The flower color trait in pea plants is dominant.
The flower color trait in pea plants can be dominant or recessive.
The flower color trait in pea plants can be dominant or recessive.
The correct response is:
The flower color trait in pea plants is dominant.