BSc Sem III 2023 2024 2024 ZOOLOGY I Question Paper - Mumbai University | munotes

Questions asked in this paper

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1. Q1 A) Fill in the blanks. 4; is a nucleoside containing pyrimidine base = is the location of a particular gene on the chromosome 5 marks
   • 3. Humans have pairs of autosomes and one pair of sex chromosome
   • 4. Is a Greek word which means stopping or suppression of gene
   • 5. form of DNA has left-handed double helix
   • B) Match the column. 5
   • 5. Rosalind and Franklin
   • C) True or False. 5
   • z. Enzyme helicase help in unwinding of DNA strand
   • 3. Colour-blindness is an example of X linked recessive inheritance
   • 4. Type AB is a Universal donor blood group
   • 5. Roan coat colour in cattle in an example of codominance
   • D) Answer in one sentence. 5
   • 1. Define cistron
   • 2. What is the henotypic ratio of Mendelian Dihybrid cross?
   • 3. What is the shape of Acrocentric chromosome?
   • 4. What is heterochromatin? Which enzyme Carries out proof reading of newly formed
   • 2. Answer the following (Any 2) 20
   • 4. What is Epistasis? Give a detailed account on Dominant Epistasis / 2. Describe Co-dominance with suitable example
   • 3. Describe in detail dihybrid cross and state the Mendelian principles of inheritance
   • 4. Describe the pattern of inheritance of blood group and Rh factor in Man f @. 3. Answer the following (Any 2) 20 Marks
   • 1. Classify chromosomes on the basis of position of centromere
   • 2. Explain role of environment and hormone in sex determination
   • 3. Explain any two mechanisms of chromosomal basis of sex determination
   • 4. Explain the inheritance of colour blindness in Man
2. Q4 Answer the following (Any 2) 20 marks
   • 4. Describe Griffiths transformation experiment
   • 2. Describe process of DNA replication
   • 3. Write a detailed account‘on types of DNA
   • 4. Give an account of Harshey Chase experiment of bacteriophage infection
3. Q5 Write short note. (Any 4) 20 marks
   • 1. Structure of t-RNA
   • 3. Polytene chromosome
   • 4. Euchromatin and heterochromatin
   • 5. Parthenogenesis
   • 6. Lethal genes
   • 7. Differentiate between test cross and back cross
   • 8. Characteristics of Autosoma! dominant traits

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