Final answer:
The truth about linkage analysis is that it is used to map the relative positions of genes on a chromosome, a critical part of genetic mapping and genomics, rather than identifying gene sequences, comparing different species' genomes, or replicating DNA in vitro.
Step-by-step explanation:
The correct answer to the question, "Which of the following is true about linkage analysis?" is b) It is used to map the relative position of genes on a chromosome. Linkage analysis is essential for understanding the genetic maps of organisms by studying the recombination frequency between genes to determine if they are linked, indicating they are located on the same chromosome and tend to be inherited together. This process is integral to genomics and relies on natural recombination processes.Linkage analysis is not used to identify the sequence of a specific gene, compare genomes of different species.
Replicate DNA in vitro. Instead, other techniques are used for these purposes, such as sequence mapping for identifying gene sequences, comparative genomics for comparing genomes, and polymerase chain reaction (PCR) for DNA replication in vitro.Linkage analysis is a technique used to map the relative position of genes on a chromosome. It involves analyzing the recombination frequency between genes to determine if they are linked or show independent assortment. By studying the recombination frequency, scientists can determine the distance between genes and create genetic maps.