Note: Attempt at least ONE question from each Part.

Question1. a- Give detailed account of NUCLEAR ENVELOPE. (10)
b- Discuss TRANSLATION in detail. (10)

Question2. a- What is HOMEOSTASIS? Explain Negative Feedback Control Mechanism. (10)
b- Discuss briefly ENDOCRINE HORMONES. (10)

Question3. a-Discuss Different RESPIRATORY PIGMENTS. How they transport O2 and CO2. (10)
b- Write short notes on: (10)
i) Synapse
ii) Neurotransmittors
Question4. a- Explain CHROMOSOMAL ABBERATION in detail. (10)
b- What is LINKAGE? Explain Sex Linked Inheritance with example. (10)

Question5. a- Describe Mendel’s Law of INDEPENDENT ASSORTMENT in detail. (10)
b- What are MULTIPLE ALLELS? Discuss with reference to ABO blood groups inheritance.(10)
Question6. a- Explain Darwin’s theory of Natural Selection. What is NEO-DARWINISM? (10)
b- Differentiate between: (10)
i) Homology and Analogy
ii) Phylogeny and Ontogeny


Question7. a- Define BIOGEOCHEMICAL Cycle. Explain Nitrogen Cycle in detail. (10)
b- What are the sources of WATER POLLUTION? (10)

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