Question

Physical maps indicate the order of ______ on a chromosome and the actual distance between them measured in units such as base pairs?

Answer 1

A physical map provides detail of the actual physical distance between genetic markers, as well as the number of nucleotides.

Step-by-step explanation:

A physical map provides detail of the actual physical distance between genetic markers, as well as the number of nucleotides. There are three methods scientists use to create a physical map: cytogenetic mapping, radiation hybrid mapping, and sequence mapping.

Cytogenetic mapping uses information obtained by microscopic analysis of stained sections of the chromosome. It is possible to determine the approximate distance between genetic markers using cytogenetic mapping, but not the exact distance (number of base pairs).