Cell Biology

 2020

Describe chromosome under the following headings : (10 Marks)

• Chromosome number

• Chemical constituents of chromosomes

• Chromomere

• Y chromosomes

Enumerate various types Of structural chromosomal with  their types. Give detailed account Of inversion-type structural aberration. (15 marks)

Write notes on: (15 marks)

• Sex-linkage
• Double cross-over
• Autosome
• Cytoplasmic male sterility
• Aneuploids

 2019

Define mutation. Write its classification and role in crop improvement. (10 Marks)

What are the major components that constitute cell structure ? Describe their functions.(20 Marks)

What is polyploidy ?Describe its application in crop improvement with its limitations.(10 marks)

Describe various Laws of Heredity. Explain the Law of Assortment with suitable examples. (15Marks)

 2018

What is protoplasm ? Briefly discuss its chemical and physical properties.(10 marks)

What do you understand by chromosomal abberation ? Discuss in brief the major types of chromosomal aberration . (15 Marks)

Enlist Mendel's different laws.Describe in detail the law of segregation with suitable example .(15 Marks)

Differentiate between aneuploid, euploid and polyploid. Explain in detail Explain in detail the applicaticms of allopolyploidy in cmp improvement. (20 Marks)

2017

What is cell? Enlist different organelles Of plant cell with brief description of
functions of mitochondria. (10 Marks)

Explain cytoplasmic inheritance and its characteristics. (10 Marks)

What is polyploidy? Briefly discuss its application and limitations in crop improvement.(20 marks)

What are mutations? Indicate the use of induced mutation in varietal development. (20 Marks)

2016

Elaborate Mendel's law of independent assortment' by giving suitable example.(10 Marks)

2015