Download App

Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation2 Marks
Question
How do biologists use cross over frequencies to map genes on chromosomes?
✓

Answer

The farther genes are on a chromosome, the more frequently they will cross over. By comparison, genes that are close together on a chromosome, are less likely to be separated. The analysis of how often the traits appear together, helps to establish linkage map, which shows the relative positions of genes on chromosomes.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions." from Principles of Inheritance and Variation→Principles of Inheritance and Variation — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

What features of flowers facilitate pollination by birds?
→
What do you mean by nucleoid?
→
Mention the possible levels of regulation of gene expression in eukaryotes.
→
What are chromatin? Why are they seen as ‘beads on string’ structure under electron microscope?
→
Draw and label the parts of the head region only of a human sperm.
→
Consuming curd keeps the gastrointestinal tract intact. Give reason.
→
Pollination is prerequisite for fertilization in plants.
→
Draw a well labelled diagram of L.S. human testis.
→
What are the allied professions to poultry?
→
EraDominating group of animals
1. Coenozoic……………………………….
2. ……………………………….Reptiles
3. Palaeozoic……………………………….
4. ……………………………….Lower Invertebrates
→