Variations in Skin Tone Correlate with a Balance Between These

question 74

Multiple Choice

Variations in skin tone correlate with a balance between these two vitamins.

• A) B2 and B6
• B) B12 and B6
• C) D and folate
• D) D and B6
• E) Folic acid and folate

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Definitions:

Genes

Segments of DNA that encode for proteins and determine the traits and characteristics of organisms.

Nucleosomes

Nucleosomes are the basic structural unit of DNA packaging in eukaryotic cells, composed of a segment of DNA wound around a core of histone proteins.

Histones

Small, positively charged (basic) proteins in the cell nucleus that bind to the negatively charged DNA. See nucleosomes.

Somatic Cell

In animals, a cell of the body not involved in formation of gametes. Compare with germ line cell.