Two flies mate and have the following 1000 progeny: JjRr = 404; jjRr = 100; Jjrr = 98; jjrr = 398. Find the recombination frequency (centimorgan) of jjRr with Jjrr
Question and options
Two flies mate and have the following 1000 progeny:
JjRr = 404; jjRr = 100; Jjrr = 98; jjrr = 398.
Find the recombination frequency (centimorgan) of jjRr with Jjrr
JjRr = 404; jjRr = 100; Jjrr = 98; jjrr = 398.
Find the recombination frequency (centimorgan) of jjRr with Jjrr
- 19.8
- 50.4
- 49.8
- 49.6
Answer and explanation
Correct answer: A - 19.8
In this testcross (JjRr × jjrr), the large classes (404 JjRr and 398 jjrr) are parental and the small classes (100 jjRr and 98 Jjrr) are recombinant. Recombination frequency = (100 + 98) / 1000 = 19.8%, i.e. 19.8 cM.
Practice for these exams
-
CUSAT CAT M.Sc. Bioethics
-
Bihar Judicial Services
Subject revision
-
Uttarakhand Judicial Services
Subject revision
Related question papers
Related exam syllabi
More solved explanations in General science & technology
- In which year did the nuclear power station first start generating electricity in India ?
- Which of the following body part can be most affected due to ultraviolet radiations ?
- According to Chakradatta, Eladi Churna is a prominent treatment for which condition?
- The synthetic equivalent for phenyl anion is
- Which metal is usually extracted from sea water?