What do the nucleic acids comprise?
Correct answer D. DNA & RNA
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Agriculture MCQs
Page 61 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 61 of 135
Which structures act as digestive vacuoles in the animal cell?
Correct answer D. Lysosomes
Who introduced the term cell in 1665?
Correct answer D. Hooke
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As a general rule, interbreeding is possible between which organisms?
Correct answer B. Any two members of a Species
In a stable population, the dominant phenotype has a frequency of 75%. What is the frequency of the dominant allele?
Correct answer B. 50%
A farmer planted 300 kernels from a single ear of corn, which gave 225 tall and 75 short plants. What are the most likely genotypes of these offspring?
Correct answer A. TT, Tt and tt
With which cell structure is the protein-synthesising system associated?
Correct answer D. Ribosomes
Into which group are bacteria and single-celled animals and plants placed together?
Correct answer D. Protista
What is an organism or cell called whose chromosome number is slightly higher than an exact multiple of the basic number?
Correct answer B. Hyperploid
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In which type of plants is pedigree selection used?
Correct answer D. Self pollinated plants
What is the occurrence of cells containing multiples of the 2n genome in a diploid organism called?
Correct answer B. Endopolyploidy
The spread of genes from one breeding population to another by migration, which may change gene frequency, is called?
Correct answer A. Gene flow
What is the absence of chlorophyll in a plant called?
Correct answer B. Albinism
What causes gynandromorphs in Drosophila?
Correct answer B. Loss of X-chromosome
Who discovered the linkage of hereditary units?
Correct answer B. W. Bateson and R.C. Punnett
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Which of the following is a test cross?
Correct answer B. Tt x tt
Why are haploids so important in crop improvement programmes?
Correct answer C. They give homozygous lines following diploidisation
What offspring are produced by crossing a homozygous tall plant with a homozygous dwarf plant?
Correct answer C. All heterozygous tall
The new crop triticale was developed by intergeneric hybridisation between which two crops?
Correct answer A. Rye & Wheat
Mendel studied pairs of contrasting characters in peas for his breeding experiments. Which of these characters did he not study?
Correct answer B. Leaf shape