KCET · BIOLOGY · STD 12 - 13. Biodiversity and Conservation
The greatest threat to genetic diversity in agricultural crops is
- A introduction of high yielding varieties
- B extensive use of fertilisers
- C extensive use of insecticides and pesticides
- D extensive mixed cropping
Answer & Solution
Correct Answer
(A) introduction of high yielding varieties
Step-by-step Solution
Detailed explanation
(A) introduction of high yielding varieties,
The greatest threat to genetic diversity in agricultural crops is introduction of high yielding varieties as it may often lead to the replacement of traditional and diverse crop varieties, reducing genetic diverse crop varieties, reducing genetic diversity. Extensive use of fertilizers, insecticides, pesticides and mixed cropping can affect ecosystems but are less directly impactful on genetic diversity.
The greatest threat to genetic diversity in agricultural crops is introduction of high yielding varieties as it may often lead to the replacement of traditional and diverse crop varieties, reducing genetic diverse crop varieties, reducing genetic diversity. Extensive use of fertilizers, insecticides, pesticides and mixed cropping can affect ecosystems but are less directly impactful on genetic diversity.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from BIOLOGY
- The term, genetic RNA refers toKCET 2011 Easy
- Pteridophytes are called vascular cryptogams, because they are non-seeded plants containingKCET 2012 Hard
- The Government of India legalised MTP with some strict regulations in the yearKCET 2024 Medium
- Mendel found that the reciprocal crosses yielded identical results. From that he concluded thatKCET 2010 Easy
- Which of the following statements is correct?KCET 2014 Easy
- Connell's field experiment on the rocky sea coast of Scotland, where larger Barnacle Balanus dominates the intertidal area and removes the smaller Barnacle Chthamalus. This happened due toKCET 2016 Easy
More PYQs from KCET
- A gas can be taken from A to B via two different paths ACB and ADB.
When path ACB is used, \(60\) J of heat flows into the system and \(30\) J of work is done by the system. If path ADB is used, work done by the system is \(10\) J.
The heat flow into the system in path ADB isKCET 2026 Medium - For the decomposition of a compound \(A B\) at \(600 \mathrm{~K}\), the following data were obtained
The order for the decomposition of \(A B\) isKCET 2009 Easy - A ligand is aKCET 2012 Easy
- An aromatic compound ' \( \mathrm{A} \) ' \( \left(\mathrm{C}_{7} \mathrm{H}_{9} \mathrm{~N}\right) \) on reacting with \( \mathrm{NaNO}_{2} / \mathrm{HCl} \) at \( 0^{\circ} \mathrm{C} \) forms benzyl
alcohol and nitrogen gas. The number of isomers possible for the compound ' \( A \) ' isKCET 2014 Easy - If \(f(x)=\sin \left[\pi^2\right] x-\sin \left[-\pi^2\right] x\), where \([x]=\) greatest integer \(\leq x\), then which of the following is not true?KCET 2025 Medium
- Which one of the following sets of ions represents the collection of isoelectronic species?KCET 2013 Easy