Who coined the term chromosome?
Correct answer A. Waldeyer
Subject / 2,686 questions
Agriculture MCQs
Page 46 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 46 of 135
What is the conversion of inorganic phosphorus into organic phosphorus called?
Correct answer B. Immobilisation
Which device directly measures the mean velocity of flow in a river?
Correct answer A. Rod floats
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What is the carrier of genetic information?
Correct answer B. Nucleic acid
In which type of clay mineral does maximum fixation of potassium occur?
Correct answer D. 2:1 clay mineral
What is a passage or tunnel made in rock or a dam to collect seepage water called?
Correct answer C. Seepage gallery
What is the suppression of the action of a gene by another, non-allelic gene called?
Correct answer D. Epistasis
How does Azotobacter fix atmospheric nitrogen in the soil?
Correct answer B. Non-symbiotically
In a flow net, what are the lines showing the direction of water flow through the soil beneath a dam called?
Correct answer D. Flow lines
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A red-kernelled wheat variety, homozygous for two independent dominant genes, is crossed with a white-kernelled variety homozygous for both recessive genes. What phenotypic ratio appears in the F2 generation?
Correct answer A. 1:4:6:4:1
What happens when a saline-alkali soil is leached with water?
Correct answer C. pH increases and EC decreases
What are irregular rock masses formed in pre-existing cracks and crevices called?
Correct answer A. Sills
What is the unobstructed distance over a water surface along which wind can travel and raise waves called?
Correct answer B. Fetch
What is the ratio, expressed as a percentage, of the volume of water in the voids to the total volume of voids in a soil called?
Correct answer D. Degree of saturation
What are single-celled plants called?
Correct answer A. Protophyta
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Which nutrient is immobile in soil?
Correct answer B. P
Ammonium sulphate, containing 21% N and 24% S, is best used as a top dressing for which crop?
Correct answer A. Rice
What is a pile called that is driven into soft soil, does not reach hard rock and carries its load through side resistance?
Correct answer B. Friction pile
What is a chromosomal rearrangement called in which a group of genes is reversed in order?
Correct answer A. Inversion
Regarding the sources of plant nutrients, which statement is correct?
Correct answer D. All of the above