IGNOU LSE 3 2015 - Detail the molecular basis of mutations.

Question

Detail the molecular basis of mutations.

23 Dec 2017

Answer :

Word Count : 868

Mutations are simply changes in DNADNA contains a set of instructions for "building" a human. These instructions are inscribed in the structure of the DNA molecule through a genetic code. It works like this:

Image ignouacademy-com--p-2015-18769

DNA is made of a long sequence of smaller units strung together. There are four basic types of unit: A, T, G, and C. These letters represents the type of base each unit carries: adenine, thymine, guanine, and cytosine.

The sequence of these bases encodes instructions. Some parts of your DNA are control centers for turning genes on and off, some parts have no function, and some parts have a function that we don't understand yet. Other parts of your DNA are genes that carry the instructions for making proteins — which are long chains of amino acids. These proteins help build an organism.

Protein-coding DNA can be divided into codons — sets of three bases that specify an amino acid or signal the end of the protein. Codons are identified by the bases that make them up — in the example at right, GCA, for guanine, cytosine, and adenine. The cellular machinery uses these instructions to assemble a string of corresponding amino acids (one amino acid for each three bases) that form a protein. The amino acid that corresponds to "GCA"

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

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