BSc Zoology Sem III 2019 2020 Oct 2020 ZOOLOGY PAPER I Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Attempt the questions in serial order
2. Q1 A) Fill in the blank. 5 marks
   • 1) Mendel’s law of also known as law of purity of gametes
   • 2) is a Greek word which means stopping or suppression. (Alleles, Pedigree,
   • 3) . occurs in the ribosomes which are nucleoprotein molecules
   • 4) Chromosomes of species are arranged in a series of homologous pairs in order of their sizes is called as . (Karyotype, centromere, ideogram)
3. Q1 B) Match the foliowing. MARKS)
   • 2. Lethal alleles
   • 4. Acrocentric chromosome D. O
4. Q1 C) True or false. DNA ligase is used for unwinding of DNA strand 5 marks
   • 2. The Part of DNA Specifying a single polypeptide chain is termed as cistron,
   • 3. The protein which stimulated the production of antibody is called as
   • 4. When linked genes present on one chromosome do not separate called as linkage
   • 5. When a particular gene mutates it may affect more than one phenotypic character ts called as pleiotropic gene
5. Q1 D. Answer the following in one sentence. 2, What is dominant trait? 3, What are genes? 5 marks
   • 4. What is Heterochromatin?
   • 5. What is translation?
6. Q2 A) Answer any two out of four. What is epistasis? Give a detailed account of dominant epistasis 20 marks
   • 2. Discuss in brief inheritance of Mendelian phenotypic traits in humans
   • 3. Define genetics and explain its scope and importance
   • 4. Explain Mendel’s laws of inheritance
7. Q3 Answer any two out of four. 20 marks
   • a) Human X and Y chromosome
   • b) Sex linked and sex influenced genes
   • 2. Classify chromosomes on the basis of position of centromere
   • 3. Explain the inheritance of colour blindness in man
   • 4. Explain any two mechanisms of chromosomal basis of sex determination
8. Q4 Answer any two out of four. 20 marks
   • 1. What is DMA replication? Describe the process of DNA replication in detail
   • 2. Explain RNA as a genetic material
   • 3. Write in detail the process of transcription
   • 4. Describe Griffith transformation experiment
9. Q5 Write Short notes on (Any four) 20 marks
   • a. Concept of operon
   • b. Genetic code
   • c. Function of tRNA
   • d. Parthenogenesis
   • e. Differentiate between autosomes and sex chromosomes
   • h. Difference between gene and genome
   • j. Albinism

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