Download App

Biotechnology and its Applications — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology and its Applications1 Mark
MCQ
Agrochemicals are:
  • A
    Chemical products of agriculture
  • B
    Synthetic chemicals employed in agriculture
  • C
    Chemicals used as pesticides
  • D
    Chemicals used as fertilizers
✓

Answer

  1. Synthetic chemicals employed in agriculture

Explanation:

An agrochemical, contraction of agricultural chemical, is a chemical product used in agriculture. Some agrochemicals are considered to be synthetic because of their non-natural origin and are described as exogenous pesticides.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q [1M]" from Biotechnology and its Applications→Biotechnology and its Applications — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

For transformation with recombinant DNA, the bacterial cells must first be made ‘competent’ which means:
→
Plants with spikelet inflorescence are well adapted for ...........
→
Among animals more than $70\%$ are insects that means out of every $10$ animals on this planet .......... are insects.
→
Transgenic plants receive genes from which of the following organisms?
→
Which of the following is not an attribute of a population$?$
→
Which of the following is correct sequence in food chain
→
Which of the following can be controlled by using biopesticides?
→
Which of the following statement is not true?

$I.$ DNA being a hydrophilic molecule cannot pass through cell membranes

$II.$ Agrobacteriumtumefaciens delivers a piece of $DNA$ known as $'Z-DNA'$ in the Tiplasmid which transforms normal plant cells into tumour cells to produce chemical against pathogens

$III.$ Retrovirus, adenovirus, papillomavirus are also now used as cloning vectors in animal because of their ability to transform normal cells into cancerous cell.

$IV.$ In genetic engineering, $DNA$ from different sources are cut with the same restriction enzymes so that both $DNA$ fragments have same kind of sticky ends

Choose the correct option

→
Action of contraceptive is
→
Which of the following is an accessory reproductive gland in male mammals? 
→