What is the term for a map that indicates the relative positions of genes on a chromosome?

What is the term for a map that indicates the relative positions of genes on a chromosome?

• A. Genealogy
• B. Genetic marker
• C. Genetic map
• D. Genome sequence

Answer: (C)

A genetic map specifically represents the arrangement of genes and their relative positions on a chromosome. This type of map provides information about the distances between genes, often measured in centimorgans, which indicates how likely it is that two genes will be inherited together. Genetic maps are crucial for understanding inherited traits and can be used in various applications, including breeding programs and genetic research. In contrast, genealogy generally refers to the study of family lineage and ancestral relationships, which does not focus on gene positioning. A genetic marker refers to a specific segment of DNA with a known location on a chromosome, used to identify individuals or species, but it does not indicate the overall arrangement of multiple genes. Lastly, a genome sequence represents the complete DNA sequence of an organism, encompassing all of its genes, but does not convey the relative positioning of those genes like a genetic map does.

A genetic map specifically represents the arrangement of genes and their relative positions on a chromosome. This type of map provides information about the distances between genes, often measured in centimorgans, which indicates how likely it is that two genes will be inherited together. Genetic maps are crucial for understanding inherited traits and can be used in various applications, including breeding programs and genetic research.

In contrast, genealogy generally refers to the study of family lineage and ancestral relationships, which does not focus on gene positioning. A genetic marker refers to a specific segment of DNA with a known location on a chromosome, used to identify individuals or species, but it does not indicate the overall arrangement of multiple genes. Lastly, a genome sequence represents the complete DNA sequence of an organism, encompassing all of its genes, but does not convey the relative positioning of those genes like a genetic map does.