Which of the following is false? a. The color of a fruit fly's eyes is a trait. b. The instructions for producing a trait are found in a gene that controls the physical expression of that trait. c. A gene can have different alleles that can specify different traits, such as red or brown eye color. d. The trait is influenced by the gene, independent of the environment. e. By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced.
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Which of the following is false?
| a. |
The color of a fruit fly's eyes is a trait. |
|
| b. |
The instructions for producing a trait are found in a gene that controls the physical expression of that trait. |
|
| c. |
A gene can have different alleles that can specify different traits, such as red or brown eye color. |
|
| d. |
The trait is influenced by the gene, independent of the environment. |
|
| e. |
By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced. |
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