BSc Zoology Sem III 2022 2023 Oct 2023 ZOOLOGY I Question Paper - Mumbai University | munotes

Questions asked in this paper

• Figures to the right indicate full marks

1. Q1 a) Fill in the blanks. is the location of a particular gene on a chromosome. (Locus 5 marks
   • 2. The cross of hybrid to one of its parents is called . (Test cross,
   • 3. Humans have pair of autosomes and | pair of sex chromosome. (44. 23
   • 4. According to the genic balance theory, X/A=1.5 will make the individual . (Male, Meta or Super female, Intersex, None of the above)
   • 5. The process of protein synthesis is called as (Replication, Translation,
   • b) Match the column 5
   • 2. Recessive epistasis b. O
   • 3. Beard in men c. Initiation Codon
   • c) Write true or false 5
   • 1. Rh antigen was present on tiie of Gorilla monkey
   • 2. Law of segregation of alleles can be proved using monohybrid cross
   • 3. Sex linked genetically inherited traits can appear in both males and females
   • 4. RII bacteria is capsulated bacteria
   • 5. DNA helicase enzyme involved in unwinding of DNA during replication
   • d) Write one sentence answer. 5
   • 1. Who discovered human blood groups?
   • 2. Which chromosome is present in both male and female?
   • 3. What role does the environmental factors play in determination of sex in
   • 4. Barr bodies are present in?
   • 5. Which bacteria was selected by Griffith for the experiment?
2. Q2 Answer the following. (Any two) 20 marks
   • 1. Define genetics and explain its scope and importance
   • 2. Describe incoriplete dominance with a suitable example VCD/ 100MARKS 3HRS
   • 3. What is epistasis? Give a detailed account of double epistasis
   • 4. Explain the inheritance of alleles with the help of a suitable example
3. Q3 A) Answer the following (Any one). 10 marks
   • 1. Describe and classify the structure of chromosomes?
   • 2. Difference between Autosome & Allosome
   • B) Answer the following (Any one). 10
   • 1. Explain the XX-XO mechanism of sex determination
   • 2. Explain sex limited genes with the help of an example
4. Q4 Answer the following (Any two). 20 marks
   • 1. Describe the process of transcription in eukaryotes
   • 2. Write properties of Genetic code
   • 3. Explain- Structure of DNA
   • 4. Explain Process of translation in eukaryotes
5. Q5 Write short note. (Any four). 20 Marks — Classical concept of gene
   • 3. Test cross and backcross
   • 6. Packaging of DNA
   • 7. Structure of m RNA
   • 8. Wobble Hypothesis

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