A Wild- Type Organism and a Genetic Variant Both Have

question 18

Multiple Choice

A wild- type organism and a genetic variant both have a gene encoding a receptor producing a chemotactic response to metabolite A. The genetic variant has a mutation in a regulatory gene for expression of the receptor. Which of the following statements with respect to the receptor is CORRECT?

• A) The organisms have the same receptor genotype but different phenotypes.
• B) The phenotypes of both organisms are the same, but the genotypes differ.
• C) The genotypes and phenotypes of both organisms are the same.
• D) The organisms have different genetic sequences for the receptor.
• E) The answer cannot be determined from the information provided.

Recognize the origin and differentiation potential of somites in vertebrates.

Understand the impact of genetic and environmental factors on neural tube defects.

Appreciate the chronological order of structures in neurulation and its importance.

Understand the role of the allantois in waste management during the development of certain vertebrates.

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Definitions:

Biochemistry

The branch of science that explores the chemical processes and substances occurring within living organisms.

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