what is a gene?\nthe different forms of a trait\na segment of dna that is the basic unit of heredity\nthe…

what is a gene?\nthe different forms of a trait\na segment of dna that is the basic unit of heredity\nthe appearance or characteristics that are seen in an organism\nan organism’s allele combination

what is a gene?\nthe different forms of a trait\na segment of dna that is the basic unit of heredity\nthe appearance or characteristics that are seen in an organism\nan organism’s allele combination

Answer

Brief Explanations:

To determine the correct definition of a gene, we analyze each option:

  • "the different forms of a trait" describes alleles, not genes.
  • "a segment of DNA that is the basic unit of heredity" matches the scientific definition of a gene, as genes are DNA segments carrying hereditary information.
  • "the appearance or characteristics that are seen in an organism" refers to the phenotype, not a gene.
  • "an organism’s allele combination" refers to the genotype, not a gene.

Answer:

B. a segment of DNA that is the basic unit of heredity