8. What is the term given to the sequence of nucleotides that contains the information to make a specific protein molecule?
Answer: A
Gene
A gene is the term used to describe the sequence of nucleotides that contains the information necessary to synthesize a specific protein molecule. This sequence encodes the instructions for building proteins, which are essential for various functions in living organisms.
A) Gene
Gene is the correct term for the sequence of nucleotides that provides the instructions for protein synthesis. Each gene corresponds to a specific protein, making it fundamental to the processes of heredity and biological function.
B) Locus
Locus refers to the specific physical location of a gene on a chromosome, but it does not represent the nucleotide sequence that encodes for a protein. While related to genes, it does not contain the information needed to synthesize proteins.
C) Promoter
A promoter is a region of DNA that initiates transcription of a gene but is not the gene itself. It plays a regulatory role in gene expression rather than encoding the protein, making it incorrect in this context.
D) Operator
An operator is a segment of DNA that regulates the activity of a gene by interacting with regulatory proteins, but it does not contain the information to produce a protein. Its function is more about controlling gene expression rather than encoding protein sequences.
Conclusion
The term "gene" is definitively correct as it directly refers to the sequence of nucleotides that encodes for a specific protein. In contrast, the other options—locus, promoter, and operator—relate to gene function and regulation but do not contain the actual information for protein synthesis. Thus, they fail to address the core concept of the question.