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What are three ways natural selection can effect the polygenic traits?
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∙ 12y ago
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∙ 12y ago
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What happens to unnecessary traits during the process of natural selection?
How does natural selection affect undesirable traits?
Traits that are shaped by many genes are called what?
Traits that are produced by the interaction of several genes are called polygenic traits. Examples of polygenic traits are height and skin color.
When the phenotypes of polygenic traits are represented by a bell shaped curve the?
Many polygenic traits are represented by a bell cure because they are controlled by many genes and result in gradations where each gene has an effect.
What process in which organisims with traits well suited to an environment are more likely to survive and to produce offspring is?
natural selection
What are Mendelian traits?
Traits that are controlled a multiple gene loci. Polygenic traits.
What are ways in which natural selection operates on ploygenic traits?
Polygenic? Natural selection usually acts on the phenotype of polygenic traits as they are suites of genes acting in concert to form a trait. If you had a trait, such as height, in two variant brothers then the aggregate would need to be selected for as the genes working in concert, but not equally well, would render different heights in the brothers which would be then visible to natural selection.
What happens to unnecessary traits during the process of natural selection?
How does natural selection affect undesirable traits?
Traits that are shaped by many genes are called what?
Traits that are produced by the interaction of several genes are called polygenic traits. Examples of polygenic traits are height and skin color.
What is trait called when it is controlled by more than one gene?
Polygenic Traits
Traits controlled by two or more genes are called what?
Polygenic Traits.
When the phenotypes of polygenic traits are represented by a bell shaped curve the?
Many polygenic traits are represented by a bell cure because they are controlled by many genes and result in gradations where each gene has an effect.
Describe three patterns of natural selection on polygenic traits Which one leads to two distinct phenotypes?
One pattern of natural selection polygenic traits is directional selection, in which one end of the spectrum leads to increased fitness and the other end decreased fitness. Disruptive selection is when both ends of the spectrum lead to increased fitness and the middle leads to decreased fitness and it leads to two distinct phenotypes being selected for. It's opposite is stabilizing selection, in which the middle has the best fitness and the two extremes have decreased fitness.
Is natural selection responsible for inherited traits?
no, inherited traits are responsible for natural selection
How are artificial selection and natural selection similar?
Natural selection and artificial selection both involve an organism's traits being determined by how much they're favored. Then, the organisms with favorable traits pass those traits on to future generations.However, natural selection is caused by survival; the organisms with traits that increase their chances for survival and reproduction pass on their traits. As for artificial selection, humans purposefully decide which traits (like the most colorful one) of an organism to pass on.The similarity of artificial selection and natural selection is that they both can cause changes in the frequency of population.
What process in which organisims with traits well suited to an environment are more likely to survive and to produce offspring is?
natural selection
How is pleiotropy different from polygenic inheritance?
Differencebetween polygenic and pleiotropic traits
Trait controlled by two or more genes?
Polygenic Traits
