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Genetics and plant breeding question bank
- 1. Chapter 5 Genetics, Plant Breeding, Seed Science and Plant Biotechnology (I) Genetics Quest.The study of the way in which genes operate and the way in which they are transmitted (heredity) from parents to offsprings Ans.Genetics Quest.Who coined the term genetics? Ans.W. Bateson (1905) Quest.The ‘father of modern genetics’ Ans.Gregor John Mendal Quest.Which is known as functional unit of life? Ans.Cell Quest.Who discovered the cell? Ans.R. Hooke (1665) Quest.Cell theory was given by Ans.M.J. Schleiden and T.Schwann (1939) Quest.Which is known as physical basis of life? Ans.Protoplasm Quest.How many kind of cells are found in living world? Ans.2 (Eukaryote and Prokaryote) Quest.The plant cell is a type of cell Ans.Eukaryote Quest.Which cell organelle is found in both prokaryotic and eukaryotic cells? Ans.Ribosome This copy of EBook is for use at UAHS, Shimoga only. Cannot be resold.
- 2. Quest.The cells without cell wall Ans.Protoplasts Quest.Controlling centre of cell Ans.Nucleus Quest.Nucleus was discovered by Ans.Robert Brown (1983) Quest.Which cell organelle is called as “Power house of the cell”? Ans.Mitochondria Quest.Who discovered mitochondria? Ans.Hollicker Quest.Who coined the term mitochondria? Ans.Benda (1897) Quest.The term ‘Endoplasmic reticulum’ coined by Ans.Porter (1948) Quest.Which organelle of cell is known as engine of cell? Ans.Ribosome Quest.Rough ER is associated with Ans.Ribosome Quest.The main site of protein synthesis Ans.Ribosome Quest.70s type ribosome is found in Ans.Mitochondria Quest.Name the prokaryotic organism which does not contain mitochondria? Ans.Bacteria Quest.The term Lysosome was 1st used by Ans.Dave (1955) Quest.Which organelle of cell is known as suicidal bag of cell? Ans.Lysosome Quest.The main function of Golgi body is Ans.Packing and transport of food materials This copy of EBook is for use at UAHS, Shimoga only. Cannot be resold.
- 3. Quest.Which organelle of cell is known as dustbin of cell? Ans.Vacuoles Quest.Which organelle of cell is non living? Ans.Cell wall Quest.The material contained in vacuoles Ans.Cell sap Quest.A self replicating, extra-chromosomal genetic material found in plant cell Ans.Plastids Quest.Plastids was introduced by Ans.Lederberg Quest.Which organelles of cell are found only in plants? Ans.Plastids, Spherosome Quest.Which plastid of cell is responsible for photosynthesis in plants? Ans.Chloroplast Quest.Which plastid of cell is responsible for colour in plants? Ans.Chromoplast Quest.Which plastid of cell is responsible for storage of starch and fat in plants? Ans.Leucoplast Quest.Name the leucoplast which functions as the storage of oil? Ans.Lipoplast Quest.Thread like bodies that carry gene Ans.Chromosome Quest.Who firstly discovered chromosome? Ans.Strasburger (1875) Quest.Who coined the term chromosome? Ans.Waldeyer (1888) Quest.Who gave the chromosomal theory of Inheritance? Ans.Sutton and Boveri Quest.What is the fundamental unit of chromosome? Ans.Chromatin This copy of EBook is for use at UAHS, Shimoga only. Cannot be resold.
- 4. Quest.Which part of the chromosome is known as primary constriction? Ans.Centromere Quest.The major genetic constituent of chromosome Ans.DNA Quest.How many daughter cells are formed in one cycle of mitosis? Ans.Two Quest.‘Mitosis’ term was coined by Ans.Walter Flemming (1882) Quest.In which cells does mitosis occur? Ans.Somatic cells Quest.Longest phase of mitosis Ans.Prophase Quest.Shortest phase of mitosis Ans.Anaphase Quest.The middle stage in which chromosomes are arranged in equatorial plate Ans.Metaphase Quest.The stage of DNA synthesis in mitosis Ans.Interphase Quest.How many daughter cells are formed in one cycle of meiosis? Ans.Four Quest.‘Meiosis’ term was 1st given by Ans.J.B. Farmer (1905) Quest.In which cells does the meiosis occur? Ans.Reproductive cells Quest.Crossing over and recombination occur during Ans.Meiosis division Quest.In which stage, crossing over takes place? Ans.Pachytene stage Quest.Chiasmata occurs at Ans.Diplotene stage This copy of EBook is for use at UAHS, Shimoga only. Cannot be resold.