Which of the Following Statements Is True

question 17

Multiple Choice

Which of the following statements is true?

• A) Individuals who contract malaria are more likely to also develop sickle-cell anemia.
• B) The sickle-cell allele is the result of a large deletion in the gene for hemoglobin.
• C) The distribution of the sickle-cell allele is the same throughout the world.
• D) Sickle-cell anemia is a dominantly inherited genetic disease.
• E) Carriers of the sickle-cell allele are more resistant to malaria than non-carriers.

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Definitions:

Linear DNA

DNA molecules that are structured in a straight or nearly straight line, as opposed to being circular.

Nucleosomes

Structures consisting of a segment of DNA wound around a core of histone proteins, playing a crucial role in the packaging of eukaryotic DNA.

DNA Strands

The two long chains of nucleotides that twist around each other to form a double helix structure, which is the physical basis of DNA.

RNA Synthesis

The process of transcribing RNA molecules from DNA templates by RNA polymerase, a crucial step in gene expression.