Outbreeding leads to a reduction in which of the following?
Correct answer A. Homozygosity
Subject / 2,686 questions
Agriculture MCQs
Page 60 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 60 of 135
What is an artificial channel called that carries large quantities of water without problems of silting or scouring?
Correct answer D. Both A and B are correct
Which law states that pressure at any point in a liquid at rest is the same in all directions?
Correct answer B. Pascal's law
Advertisement
By which means can heterosis be fixed?
Correct answer D. All of the above
In what form can heterosis be fully exploited?
Correct answer B. Hybrids
Compressibility is the change in a liquid’s volume with a change in pressure. On this basis, how is water regarded?
Correct answer B. Incompressible
Specific weight is the weight per unit volume of a liquid at standard temperature and pressure. In the MKS system, what is the specific weight of water in kg/m3?
Correct answer B. 1000
Who first suggested the top cross?
Correct answer C. Davis (1927)
Who first used the term useful heterosis?
Correct answer A. Meredith and Bridge (1972)
Advertisement
What is the source of high lysine content in maize?
Correct answer C. Opaque-2
Which amino acids are limiting in cereals?
Correct answer D. A and B
What is the outermost part of a plant cell?
Correct answer B. Cellulose cell wall
What is the maximum magnification of an electron microscope, according to standard textbooks?
Correct answer A. 200,000 times
Which is the smallest cell organelle known?
Correct answer B. Ribosome
What is the function of the Golgi bodies?
Correct answer D. Segregation of the products of synthesis
Advertisement
Which scientist is credited with discovering ribosomes?
Correct answer A. Palade
Cytoplasm fills the cavity of a young cell. What happens to the cytoplasm in mature cells?
Correct answer B. Becomes vacuolated
Who proposed the double-helix model of DNA?
Correct answer D. Watson and Crick
Which scientist first discovered nucleic acid?
Correct answer D. Miescher
During which type of cell division does chromosome duplication occur?
Correct answer B. Mitosis and meiosis