What is the smallest unit of DNA that can take part in crossing over and recombination called?
Correct answer B. Recon
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Agriculture MCQs
Page 64 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 64 of 135
What is the gene that codes for the repressor protein called?
Correct answer C. Regulator gene
Which conditions are necessary for the Hardy-Weinberg principle to apply to a population?
Correct answer B. No migration and large population
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How does the amount of DNA in diploid cells vary?
Correct answer C. Constant for particular organism
Where is ATP formed in the cell?
Correct answer D. Mitochondria
Which cell organelle is known as the ‘suicide bag’?
Correct answer C. Lysosomes
The two strands of DNA are held together by which type of bonds?
Correct answer C. Hydrogen
Which nitrogenous base is found in RNA but not in DNA?
Correct answer D. Uracil
A mutation is a change in what?
Correct answer B. DNA
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Which of the following does not contain both DNA and RNA?
Correct answer B. Virus
Which of these is the cell’s common, readily available source of energy?
Correct answer A. ATP
Who proposed the cell theory?
Correct answer C. Schleiden and Schwann
Why was the year 1900 significant for geneticists?
Correct answer D. Rediscovery of Mendel's laws
What is the grid used to visualise all possible combinations of male and female gametes called?
Correct answer C. Punnett square
What is an organism or cell called whose chromosome number is not an exact multiple of the basic (monoploid) number?
Correct answer B. Aneuploid
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What is the ploidy level of Triticum aestivum?
Correct answer A. Hexaploid
If the diploid chromosome number of a flowering plant is 8, which cells will contain 4 chromosomes?
Correct answer D. Synergids
If a cell with 40 chromosomes undergoes meiosis, how many chromosomes does each of the four daughter cells have?
Correct answer C. 20 chromosomes
How many rounds of mitotic division must a root tip cell undergo to produce 256 cells?
Correct answer A. 8
Why is meiosis significant?
Correct answer A. Restores original number of chromosomes