What is needed if a researcher wants to analyze genes in different species for their homologies? Select all that apply.
A) Amino acid or nucleotide sequences from both species.
B) A computer program with the ability to search large amounts of data for matching sequences.
C) Knowledge of the function of the gene in both species.
D) Database containing nucleotide or amino acid sequences of many species.

Question

Quizplus · Accepted Answer

To analyze genes for homologies across different species, researchers need the actual genetic sequences (amino acid or nucleotide sequences) from those species (A), a computer program capable of handling and searching through large datasets to find matching or similar sequences (B), and access to a comprehensive database that contains genetic sequences from a wide range of species for comparison purposes (D). Knowledge of the gene's function (C) can be useful for understanding the implications of the homologies found but is not necessary for the initial analysis of homologies.

What Is Needed If a Researcher Wants to Analyze Genes