Absorption of Which of the Following Requires the Presence of Intrinsic

question 24

Multiple Choice

Absorption of which of the following requires the presence of intrinsic factor?

• A) vitamin B₆
• B) vitamin D
• C) vitamin B₁₂
• D) vitamin A
• E) vitamin K

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Definitions:

Point Mutation

A Point Mutation is a genetic mutation where a single nucleotide base is changed, inserted, or deleted from a sequence of DNA or RNA.

Mutation Rate

The frequency at which new genetic mutations occur in a given genome over a specified time frame.

Polyphenic Traits

Traits that exhibit several phenotypic expressions depending on environmental or genetic factors.

Phenotypic Plasticity

The skill of an organism to adjust its phenotype in accordance with changes in its surroundings.