What is gene?
A point that joins two halves of a chromosome
A large molecule that performs a specific function
A structure that contains many chromosomes
A section of DNA that indicates a specific protein
A section of DNA that indicates a specific protein
A gene is a section of DNA that indicates a specific protein.
A gene is a section of DNA that contains the instructions to produce a specific protein or functional RNA molecule. It is the basic unit of heredity and carries the genetic information that determines various traits and characteristics of an organism. To understand what a gene is, we can break down the question and explain the concept step by step.
To answer the question, we can eliminate the options one by one:
1. A point that joins two halves of a chromosome: This definition does not accurately describe a gene. While genes are located on chromosomes, they are not a point that joins two halves of a chromosome.
2. A large molecule that performs a specific function: This option is partially correct. A gene is indeed a larger molecule but specifically refers to a section of DNA, not any other type of molecule.
3. A structure that contains many chromosomes: This definition is incorrect. Genes are not structures that contain many chromosomes. Chromosomes contain genes, not the other way around.
4. A section of DNA that indicates a specific protein: This option is correct. A gene is a specific section of DNA that contains the instructions for building a particular protein or functional RNA molecule. It acts as a blueprint for the synthesis of proteins, which are essential for the functioning of cells and organisms.
To summarize, a gene is a section of DNA that carries the instructions for producing a specific protein or functional RNA molecule. It is not a point that joins two halves of a chromosome, a structure that contains many chromosomes, or a large molecule that performs a specific function.