B.Sc. (Biochemistry) Sem III 2017 2018 2018  BIOCHEMISTRY PAPER II Question Paper - Mumbai University | munotes

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1. Q2 Internal choices have been given
2. Q3 Figures to the right indicate marks
3. Q4 Draw flowcharts
4. Q1 A) State true or false. 4 marks
5. Q1 The recessive characteristic is denoted by small letters li) In test cross, F; progeny is crossed with the dominant parent ili) The blending of the dominant and recessive trait to produce a third trait occurs in
   • iv) Round pea seeds are dominant over the wrinkled pea seeds
   • B) Attempt the following. (any three) - 09
6. Q1 Explain the principle of dominance li) A homozygous plant with the genotype PP is crossed with another homozygous plant with the genotype pp. Draw the Punnett square for generation and give details of the phenotype and genotype of the progeny iil) Comment on back cross
   • iv) Elaborate on genotype and F; generation
   • v) Define allele and pure breeding plant V1) Write a note on epistasis
   • C) Elaborate on (any two) - 12
   • i) Reasons for Mendel’s success and his experimental setup Incomplete dominance and codominance
7. Q2 A) State true or false. 4 marks
   • i) Histones are rich in lysine and asparagine li) The 30 nm fiber is also known as solenoid fiber Conjugation is a bidirectional transfer of DNA between two bacteria
   • iv) Non-histone proteins are present in prokaryotes
   • B) Write short notes on (any three) 09
   • i) Cross between F* and F cell
   • iv) Morphology of chromosome
   • vi) Transformation
   • Q.P. Code :20786
   • C) Elaborate on (any two) - 12
8. Q1 Lytic cycle ili) Organization of eukaryotic chromosome
   • iv) Euchromatin and Heterochromatin
9. Q3 A) State true or false. 4 marks
10. Q1 Active transport is thermodynamically favourable li) Transport of chloride and bicarbonate ions takes place by symport ili) The calcium pump of sarcoplasmic reticulum is an antiport transporter
    • iv) Ferritin is the storage form of copper
    • B) Write short notes on (any three) 09
11. Q1 Metabolic acidosis and alkalosis li) Disorders of iron metabolism iil) Differentiate between carriers and channels
    • iv) Types of endocytosis
    • v) Electrochemical gradient
    • C) Elaborate on (any two) 12 ili) Dissociation curve of oxyhaemoglobin Iv) Plasma proteins in transport
12. Q4 A) Define the following (any five) 10 marks
13. Q1 Recessive trait
    • B) Answer the following : (any three) 15
14. Q1 A homozygous pea plant with the genotype RRYY is crossed with another homozygous pea plant with the genotype rryy. Give the details of the genotype and phenotype of F2 generation Write a note on Law of segregation ili) Write a elaborate note on proteins involved in chromosomal structure
15. Q4 Discuss the regulations by CDKs
    • v) Describe in detail anitport system with suitable example Vi) Explain with examples lipoproteins

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