9 Questions
What is an example of an adaptation resulting from a mutation?
The ability to digest lactose
Which of the following is an example of a beneficial mutation resulting in a more adaptive phenotype?
The ASGR1 gene mutation
Which of the following statements about CCR5-∆32 mutation is true?
People with two alleles for CCR5-∆32 are highly resistant to HIV-1 infections
What happens to less adaptive phenotypes resulting from mutations?
They are selected against by natural selection
What is the benefit of the ASGR1 gene mutation?
Lower levels of cholesterol
What is the PCSK9 gene mutation being studied for?
The development of cholesterol-lowering medications
What is the CCR5-∆32 mutation?
A mutation resulting in a protein that cannot be detected on the cell surface
What is the role of CCR5 in the body?
It plays a role in the body's inflammatory responses to infections
Which population has a greater distribution of the CCR5-∆32 mutation?
European populations
Study Notes
- Mutations can result in less or more adaptive phenotypes.
- Less adaptive phenotypes are selected against by natural selection.
- The ability to digest lactose is an example of an adaptation resulting from a mutation.
- Some mutations, like the ASGR1 gene mutation, can result in more beneficial selection.
- People with the mutated ASGR1 gene have lower levels of cholesterol and a lower chance of developing arteriosclerosis.
- Mutations in the PCSK9 gene are also being studied for the development of cholesterol-lowering medications.
- The CCR5-∆32 mutation results in a protein that cannot be detected on the cell surface.
- People with two alleles for CCR5-∆32 are highly resistant to HIV-1 infections.
- The distribution of CCR5-∆32 is greater in European populations, possibly due to selection from other illnesses.
- CCR5 plays a role in the body's inflammatory responses to infections and is involved in the infection process of HIV-1.
"Test your knowledge of mutations and their impact on human evolution with this quiz! Learn about the different types of mutations that can result in both adaptive and non-adaptive phenotypes, and how natural selection plays a role in determining which traits are passed on. Discover fascinating examples of mutations such as the ASGR1 and PCSK9 gene mutations that have potential health benefits, and the CCR5-∆32 mutation that provides resistance to HIV-1. Brush up on your understanding of genetics and
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