IGNOU LSE 7 2018 - Explain industrial melanism and genetic repatterning during isolation

Question

Explain industrial melanism and genetic repatterning during isolation with examples.

23 Jan 2018

Answer :

Word Count : 316

From the outset multiple causes have been suggested for changes in melanic gene frequency in the peppered moth Biston betularia and other industrial melanic moths. These have included higher intrinsic fitness of melanic forms and selective predation for camouflage. The possible existence and origin of heterozygote advantage has been debated. From the 1950s, as a result of experimental evidence, selective predation became the favoured explanation and

______ ___ ______ _______ ___ ________ ________ _________ ____ _________.
_________ ___ __________ ___ ________ ___ ______ __________ __________ ____.
_______ ___ _______ ___ _______ ___ ___ ______.
_____ _____ __________ ________ ________ ________ _________.
__________ ________ ________ __________ ___ ________ _________ _______ _______.
___ ________ ____ ______ _________ ________ _________ ________ ______.
____ ___ _____ _______ ____ ________.
_____ __________ _______ _______ _______ ____ ____ _____ _____.
_____ ________ __________ __________ ______ ___ ___ __________ ___ ___ _______ ________.
______ __________ _____ _________ ____ ___.
__________ ______ _______ __________ __________ _________ _______ ________ _______ _______.
____ _____ ______ _______ _____.
________ _________ ___ _____ ___ _________.
________ __________ ____ ______ _______.
________ _______ _____ __________ _________ _______ ____.
___ ______ ________ _________ ___.
_______ ________ _____ _____ _________ _______ __________ _________ __________ ___ _________.
______ ____ ___ ______ ___ __________ ______ ___ ______.
_____ _______ _________ _________ ____ ___ ______ ____ ____ ________ ______.
______ ___ ____ ___ ____ _____ _______ _______ _________.
___ ___ _________ ____ _______ _________ ______.
___ __________ ______ ________ _____ ____ _______.
_________ _________ _______ ________ ________ _________ _______ ________ ________ ______ ____.
________ ____ ____ ______ ___.
___ ___ __________ __________ _____ _________ _______ _________ ____.
_______ ______ _____ ___ ______ _________ _____ __________.
__________ __________ _______ ____ _______ _________ __________.
_________ _____ _________ ______ ________ ________ ______ _________ _________ ___.
________ _______ ______ ______ ________.
_______ ____ ___ ___ ________ ____ ___ ___ ______ ___ _________ ______.
___ _______ ________ _____ ____.

IGNOU ACADEMY

Your IGNOU journey, made easier.

Solved Assignments
Study Notes
Guess Papers
Question Papers

Call Us WhatsApp

STUDY • PREPARE • SUCCEED

Skip in 10

IGNOU Solved Assignments Assignments Ignou Projects Project Previous Year Solved Exam Papers Notes Notes Sample Question Papers Sample Question Papers