scientists discovered that the difference between blond and dark hair in humans and other mammals comes down in part to a single nucleotide difference in the dna sequence of an enhancer that lies more than 350,000 base pairs upstream from the coding region of the gene it controls. on average, blonds transcribe this gene less efficiently than people with dark hair. which of the following statements about this blond/dark hair enhancer is correct?

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10-12-2022
Biology

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scientists discovered that the difference between blond and dark hair in humans and other mammals comes down in part to a single nucleotide difference in the dna sequence of an enhancer that lies more than 350,000 base pairs upstream from the coding region of the gene it controls. on average, blonds transcribe this gene less efficiently than people with dark hair. which of the following statements about this blond/dark hair enhancer is correct?

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Yakavi Yakavi · Answer 1 · 2022-12-15T19:41:54+01:00

DNA looping could bring the enhancer bound by an activator physically close to the promoter even if the enhancer is a huge distance away along the DNA molecule.

Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around one another to form a double helix. The polymer contains genetic instructions for all known organisms and viruses' development, functioning, growth, and reproduction. Nucleic acids include DNA and ribonucleic acid.

During reproduction, DNA and the instructions it contains are passed from adult organisms to their offspring. DNA now serves three distinct functions: genetics, immunology, and structure, all of which rely on the sugar phosphate backbone and bases in different ways. DNA is composed of nucleotide molecules. Each nucleotide contains a sugar, phosphate, and nitrogen base group.

To learn more about DNA, here

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