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BIO NMDCAT Structure of DNA
nmdcat.online July 3, 2026

50. The alternative forms of a single gene that present slight variations in their nucleotide sequences and dictate contrasting traits are

A. Introns
B. Alleles
✓
C. Cistrons
D. Oncomodulins

📝 Explanation

Alleles are alternative nucleotide variants of a gene found at the same chromosomal locus, governing variations of the same trait.

📖 Additional Information

  • Introns
  • Alleles
  • Cistrons
  • Oncomodulins

Alleles are alternative nucleotide variants of a gene found at the same chromosomal locus, governing variations of the same trait.

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