BZYCT-137 GENETICS AND EVOLUTIONARY BIOLOGY in English Solved Assignment 2020-2021

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BZYCT-137 GENETICS AND EVOLUTIONARY BIOLOGY

Solved Assignment 2020-2021

Course Code: BZYCT-137
Assignment Code: BZYCT-137/TMA/2021
Maximum Marks: 100

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BZYCT-137 GENETICS AND EVOLUTIONARY BIOLOGY

Solved Assignment 2020-2021

Course Code: BZYCT-137
Assignment Code: BZYCT-137/TMA/2021
Maximum Marks: 100

Title NameBZYCT-137 Solved Assignment 2020-21
UniversityIGNOU
Service TypeSolved Assignment (Soft copy/PDF)
CourseBSCG
Language ENGLISH
Semester2020-2021 Course: B.SC(G) CBCS
Session2020-21
Short Name BZYCT-137 (ENGLISH)
Assignment CodeBZYCT-137/TMA/2021
ProductAssignment of BSCG 2020-2021 (IGNOU)
Submission DateThis assignment is valid from 1st July, 2020 to 30th June, 2021. If you have failed in this
assignment or fail to submit it by June, 2020, then you need to get the assignment for the year
2021-22, and submit it as per the instructions given in the Programme Guide
PriceRS. 50

Part-A Maximum Marks: 50
1. Define the following terms:
a) Phenotype
b) Translocation
c) Barr Body
d) Test cross
e) Pleiotropic gene
(25=10)
2. Differentiate between the following pairs:
i) DNA and RNA
ii) Down’s syndrome and Edward’s syndrome
iii) Law of segregation and Law of independent assortment
iv) Deletion and Duplication
 410)
2
1
(2
3. Write short notes on the following:
i) Dosage compensation in humans
ii) Systems of Extra Nuclear Inheritance
(25=10)
4. i) Explain the cytological mechanism of crossing over.
ii) Describe the role of multiple alleles in self incompatibility in plants.
(5)
(5)
5. What is mutation? Explain mutagenesis and significance of mutation in
detail.
(10)
Part-B Maximum Marks: 50
6. Define the following terms:
i) Genetic drift
ii) Homologous organ
iii) Species
iv) Coacervate
v) Vestigeal organ
(25=10)
7. Differentiate between the following pairs:
i) Allopatric and Sympatric Speciation
 410)
2
1
(2
4
ii) Ring species and Biological species
iii) Group selection and Kin selection
iv) Pre-mating and Post mating isolation
8. Define extinction of species. Discuss the role of extinction in evolution. (10)
9. Write short notes on the following:
i) Neo Darwinism
ii) Neo Lamarckism
(25=10)
10. Discuss “struggle of existence” and “survival of fittest” with reference to
evolution.

BZYCT-137, BZYCT 137, BZYCT137

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