BZYCT-137 Genetics And Evolutionary Biology Solved Assignment in English Medium 2026

BZYCT 137 Solved Assignment 2026 is specially prepared for students of BZYCT 137 Genetics And Evolutionary Biology who want strong conceptual clarity and better internal marks. This assignment covers chromosomal disorders like Trisomy 21 and Trisomy 18, dosage compensation, DNA structure, mutation and mutagenesis, origin of life experiments, natural selection, industrial melanism, speciation, reproductive isolation, gene concepts, blood group genetics, Mendel’s experiments, genetic drift and evolution of horse. Answers are written in simple, structured language with diagrams and examples so you can confidently write accurate and complete answers.

BZYCT 137 Assignment Questions (As Per Official TMA)

All questions are included exactly as given in the official assignment booklet :contentReference[oaicite:0]{index=0}.

Course Code: BZYCT-137 | Assignment Code: BZYCT-137/TMA/2026 | Maximum Marks: 100

1. Explain Trisomy 21 (Down’s Syndrome) and Trisomy 18 (Edward’s Syndrome) in detail. (5+5=10)
2. Write short notes on the following: a). Dosage Compensation in Humans b). Double Helical Structure of DNA (2×5=10)
3. What is mutation? Explain mutagenesis and significance of mutation in detail. (10)
4. a). Explain briefly the impacts of Miller’s experiments on the theory of origin of life. b). Discuss “struggle for existence” with reference to evolution. (5+5=10)
5. “Industrial melanism is an excellent example to demonstrate the natural selection”. Justify the statement. (10)
6. Write the differences between the following pairs: a). Allopatric and Sympatric speciation b). Pre-mating and Post-mating isolation c). Extinction and Pseudoextinction d). Homologous and Analogous organs (4×2½=10)
7. a). Define the following terms: i). Gene ii). Homozygous iii). Position effect iv). Vestigial organs v). Wallace effect b). Match the following: Meselson and Stahl – DNA replication is semi-conservative Codominance – Both the alleles are equally expressed Metacentric – Centromere is in middle Watson – Established the existence of catalytic RNAs Reproductive isolating barriers – Pre-zygotic and post-zygotic (5+5=10)
8. Explain the clinical significance of Rh antigens in human blood. (10)
9. a). Explain why did Mendel select pea plants for his experiments. b). What is crossing over? Give any four features of crossing over. (5+5=10)
10. a). “In small populations, the gene frequencies often tend to drift.” Justify the statement giving suitable example. b). Enlist the various changes that took place in the evolution of horse (any five). (5+5=10)

BZYCT 137 Assignments Details

Course Code: BZYCT-137
Course Title: Genetics And Evolutionary Biology
Assignment Code: BZYCT-137/TMA/2026
Maximum Marks: 100
Weightage: 30% in Final Assessment
Validity: 1st January 2026 to 31st December 2026

BZYCT 137 Assignment Submission End Date-upto

For the students enrolled in July 2025 – 30th April 2026 – Submit to the Coordinator of the learner support center.
For the students enrolled in January 2026 – 30th September 2026 – Submit to the Coordinator of the learner support center.

Why Choose Our BZYCT 137 IGNOU Solved Assignments?

• Step-by-step explanations of genetics and evolution concepts so you understand the logic instead of memorizing definitions blindly.
• Clear diagrams support for DNA structure, speciation and evolutionary processes to improve presentation quality.
• Strictly prepared as per official 2026 TMA booklet ensuring complete coverage of all 10 questions.
• Scientific terms explained in simple language suitable for undergraduate students.
• Numerical and conceptual answers structured exactly as per mark distribution.
• Helps in both assignment scoring and strong preparation for term-end examination.

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FAQs

Is BZYCT 137 difficult?

BZYCT 137 can feel detailed because it combines genetics, molecular biology and evolution. However, if you understand the core concepts like mutation, natural selection and speciation clearly, the subject becomes logical and manageable. Structured answers with diagrams and examples make scoring easier.

Is this BZYCT 137 Solved Assignment valid for 2025-26?

Yes, this solved assignment is prepared according to the official BZYCT-137/TMA/2026 booklet and is valid for the session 2025-26 as per IGNOU guidelines.

Can I submit this PDF directly to IGNOU?

No, IGNOU requires handwritten submissions on foolscap or A4 sheets. This PDF is for reference and understanding. You should rewrite the answers in your own words before submission.

How much weightage does this assignment carry?

The assignment carries 30% weightage in your final assessment. A well-written and properly structured assignment can significantly improve your overall grade.

How will I receive the BZYCT 137 Solved Assignment?

After successful payment, you will receive the PDF for instant download. The file is organised question-wise for easy preparation and revision.

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