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BZYCT-137 Genetics And Evolutionary Biology in English Solved Assignment 2020-2021


Course Code: BZYCT-137

Course Title : Genetics And Evolutionary Biology

Program : BSCG (IGNOU)

Assignment Code: BZYCT-137/TMA/2021



Solved Assignment 2020-2021


Title Name BZYCT-137 Solved Assignment 2020-21
University IGNOU
Service Type Solved Assignment (Soft copy/PDF)
Course BSCG
Language ENGLISH
Semester 2020-2021 Course: B.SC(G) CBCS
Session 2020-21
Short Name BZYCT-137 (ENGLISH)
Assignment Code BZYCT-137/TMA/2021
Product Assignment of BSCG 2020-2021 (IGNOU)
Submission Date This 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


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

Note: Attempt all questions. The marks for each question are indicated against it.


Maximum Marks: 50

1. Define the following terms: (2×5=10)
a) Phenotype
b) Translocation
c) Barr Body
d) Test cross
e) Pleiotropic gene

2. Differentiate between the following pairs: (4×2.5=10)
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

3. Write short notes on the following: (2×5=10)
i) Dosage compensation in humans
ii) Systems of Extra Nuclear Inheritance

4. i) Explain the cytological mechanism of crossing over. (5)
ii) Describe the role of multiple alleles in self incompatibility in plants. (5)

5. What is mutation? Explain mutagenesis and significance of mutation in detail. (10)


Maximum Marks: 50

6. Define the following terms: (2×5=10)
i) Genetic drift
ii) Homologous organ
iii) Species
iv) Coacervate
v) Vestigeal organ

7. Differentiate between the following pairs: (2.5×4=10)
i) Allopatric and Sympatric Speciation
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: (2×5=10)
i) Neo Darwinism
ii) Neo Lamarckism

10. Discuss “struggle of existence” and “survival of fittest” with reference to evolution.

Keywords: BZYCT-137, BZYCT 137, BZYCT137


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