Biology for IGCSE & O level - Inheritance (Section 5 - No. 46)
Which of the following statements correctly describe a gene?
A gene is a segment of DNA.
A gene codes for a specific protein or functional RNA molecule.
Genes are always expressed in every cell.
Genes determine an organism's traits.
คำอธิบาย
Genes are specific DNA sequences that code for proteins or RNA, influencing traits.