Q15. Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to 1. Resist drought and increase absorptive area 2. Tolerate extremes of pH 3. Resist disease infestation Select the correct answer using the codes given below:

What is the use of biochar in farming? 1. Biochar can be used as a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medi

In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation techniques? 1. It is a technique for cleaning up pollution

With reference to agriculture in India, how can the technique of ‘genome sequencing’, often seen in the news, be used in the immediate future? 1. Genome sequenc

Recombination DNA technology (Genetic Engineering) allows genes to be transferred: 1. Across different species of plants 2. From animals to plants 3. From micro

Consider the following statements: 1. Some microorganisms can grow in environments with temperature above the boiling point of water. 2. Some microorganisms can

Which one of the following is a useful functional association between fungi and the roots of higher plants?

Which of the following statements is/are correct? Viruses can infect 1. Bacteria 2. Fungi 3. Plants Select the correct answer using the code given below.

Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences? 1. Pollination of s

What is/are the advantage/ advantages of zero tillage in agriculture? 1. Sowing of wheat is possible without burning the residue of the previous crop. 2. Withou

With reference to micro-irrigation, which of the following statements is/are correct? 1. Fertilizer/nutrient loss can be reduced. 2. It is the only means of ir

What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture? 1. Proliferation of nitrogen fixing microorganisms in soil can

Consider the following statements: 1. Biofilms can form on medical implants within human tissues. 2. Biofilms can form on food and food processing surfaces. 3.

Consider the following kinds of organisms: 1. Bacteria 2. Fungi 3. Flowering plants Some species of which of the above kinds of organisms employ biopesticides?

The Government of India encourages the cultivation of ‘sea buckthorn’. What is the importance of this plant: 1. It helps in controlling soil erosion and in prev

Consider the following statements : 1. Most of the world's coral reefs are in tropical waters. 2. More than one-third of the world's coral reefs are located in

There is some concern regarding the nanoparticles of some chemical elements that are used by the industry in the manufacture of various products. Why? 1. They c

With reference to agricultural soils, consider the following statements: 1. A high content of organic matter in soil drastically reduces its water holding capa

Which of the following statements is/are correct? Virus can infect 1. Bacteria 2. Fungi 3. Plants Select the correct answer using the code given below:

Which of the following statements is/are correct? 1. Viruses lack enzymes necessary for the generation of energy 2. Viruses can be cultured in any synthetic med

Microbial fuel cells are considered a source of sustainable energy. Why? 1. They use living organisms as catalysts to generate electricity from certain substrat

In the context of mitigating the impending global warming due to anthropogenic emissions of carbon dioxide, which of the following can be potential sites for ca

What are the advantages of fertigation in agriculture? 1. Controlling the alkalinity of irrigation water is possible. 2. Efficient application of Rock Phosphate

The acidification of oceans is increasing. Why is this phenomenon a cause of concern: 1. The growth and survival of calcareous phytoplankton will be adversely a

Consider the following statements in respect of probiotics: 1. Probiotics are made of both bacteria and yeast. 2. The organisms in probiotics are found in food

Other than resistance to pests, what are the prospects for which genetically engineered plants have been created? 1. To enable them to withstand drought. 2. To

Which of the following statements is/are correct regarding vegetative propagation of plants? 1. Vegetative propagation produces a clonal population. 2. Vegetati

With reference to “Gucchi” sometimes mentioned in the news, consider the following statements: 1. It is a fungus. 2. It grows in some Himalayan forest areas. 3.

With reference to Neem tree, consider the following statements: 1. Neem oil can be used as a pesticide to control the proliferation of some species of insects a

What are the reasons for the people’s resistance to the introduction of Bt brinjal in India? 1. Bt brinjal has been created by inserting a gene from a soil fung

How does the National Biodiversity Authority (NBA) help in protecting Indian Agriculture? 1. NBA checks the biopiracy and protects the indigenous and traditiona

Consider the following: 1. Bacteria 2. Fungi 3. Virus Which of the above can be cultured in artificial/synthetic medium?

In the context of ecosystem productivity, marine upwelling zones are important as they increase marine productivity by bringing the: 1. Decomposer microorganism

Which of the following best describe/ describes the aim of the ‘Green India Mission’ of the Government of India? 1. Incorporating environmental benefits and cos

With reference to the food chains in ecosystems, which of the following kinds of organism is/are known as decomposer organism/organisms? 1. Virus 2. Fungi 3. Ba

With reference to the current trends in the cultivation of sugarcane in India, consider the following statements: 1. A substantial saving in seed material is ma

Consider the following statements: The nation-wide ‘Soil Health Card Scheme’ aims at: 1. Expanding the cultivable area under irrigation. 2. Enabling the banks t

With reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct? 1. Stem cells can be derived from mammals only. 2. Ste

Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Tiny leaves 3. Thorns instead of leaves

In which of the following are hydrogels used? 1. Controlled drug delivery in patients 2. Mobile air-conditioning systems 3. Preparation of industrial lubricants

"Membrane Bioreactors" are often discussed in the context of:

Which one of the following is synthesised in the human body that dilates blood vessels and increases blood flow?

‘Aerial metagenomics’ best refers to which one of the following situations?

‘Microsatellite DNA’ is used in the case of which one of the following?

In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements: 1. The Serum Institute of India produced COVI

‘Biorock technology’ is talked about in which one of the following situations?

Consider the following statements: DNA Barcoding can be a tool to: 1. Assess the age of a plant or animal. 2. Distinguish among species that look alik

Bollgard I and Bollgard II technologies are mentioned in the context of: