Microbes in Human Welfare Questions for NEET

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Microbes in Human Welfare Questions for NEET. We covered all the Microbes in Human Welfare Questions for NEET in this post for free so that you can practice well for the exam.

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MCQ on Microbes in Human Welfare Questions for NEET Students

Which of the following is a conventional plant breeding technique?

(A) Mutation breeding

(B) Hybridisation

(C) Somaclonal variation

(D) Genetic engineering

Option b – Hybridisation

…….. is a group of animals related by descent possessing similar characteristics like appearance features, size, etc.

(A) Herd

(B) Breed

(C) Stock

(D) Floc

Option b – Breed

Identify which of the following disease-resistant crop variety is produced by mutation breeding.

(A) Variety of mung beans, resistant to yellow mosaic virus

(B) Variety of cowpea, resistant to bacterial blight

(C) Variety of Brassica, resistant to white rust

(D) Variety of wheat, resistant to leaf and stripe rust

Option a – Variety of mung beans, resistant to yellow mosaic virus

Which of the following microbial species commonly present in root ecosystems is used as a biocontrol agent for plant pathogens?

(A) Trichoderma

(B) Nucleopolyhedrovirus

(C) B. thuringiensis

(D) Monascus purpureus

Option a – Trichoderma

Plant breeding for improved nutritional quality does not involve which of the following objectives.

(A) Improving protein content and quality

(B) Improving tolerance to environmental stress

(C) Improving vitamin content

(D) Improving mineral content

Option b – Improving tolerance to environmental stress

Which of the following is NOT a fungal microbe used in human welfare?

(A) Aspergillus niger

(B) Monascus purpureus

(C) Clostridum butylicum

(D) Trichoderma polysporum

Option c – Clostridum butylicum

…… grows in milk and converts it to curd.

(A) Propionibacterium shermanii

(B) Lactobacillus

(C) Saccharomyces cerevisiae

(D) Aspergillus

Option b – Lactobacillus

The discovery of Penicillin and its potential as an antibiotic was established by

(A) Alexander Fleming

(B) Ernest Chain

(C) Howard Florey

(D) All of the above

Option d – All of the above

Read the following statements and choose the correct option. Statement I: Multiple ovulation embryo transfer technology is used successfully for herd improvement. Statement II: The success rate of crossing animals by artificial insemination is low.

(A) Statement I is correct and statement II is incorrect.

(B) Statement II is correct and statement I is incorrect.

(C) Both statement I and statement II are correct.

(D) Both statement I and statement II are incorrect.

Option c – Both statement I and statement II are correct.

Resistance to yellow mosaic virus in bhindi resulted in a new variety called

(A) Pusa Sem 2

(B) Pusa Gaurav

(C) Parbhani Kranti

(D) Karan rai

Option c – Parbhani Kranti

A mass of bacteria associated with fungal filaments that initiates the breakdown of organic matter in the effluent is known as

(A) inoculum

(B) starter

(C) floc

(D) stock

Option c – floc

Read the following statements and choose the correct option. Statement I: Atlas 66, having high protein content was used to improve cultivated maize. Statement II: Iron-fortified variety of rice contains five times as much iron as the commonly consumed varieties.

(A) Statement I is correct and statement II is incorrect.

(B) Statement II is correct and statement I is incorrect.

(C) Both statement I and statement II are correct.

(D) Both statement I and statement II are incorrect.

Option b – Statement II is correct and statement I is incorrect.

The rate of biomass production by 250 g of Methylophilus methylotrophs is expected to be ……….. /day.

(A) 25 tonnes of protein

(B) 250 g of protein

(C) 200 g of protein

(D) 20 tonnes of protein

Option a – 25 tonnes of protein

Which of the following is a source of resistant genes to cultivate insect-resistant plants?

(A) Cultivated varieties of the crop

(B) Germplasm collections

(C) Wild relatives of the crop

(D) All of the above

Option d – All of the above

Which of the following is INCORRECT with respect to artificial insemination?

(A) Semen can be collected and transported.

(B) Chances of conception are high.

(C) Semen from old and injured bulls cannot be used.

(D) Every breeder does not need to maintain a bull.

Option c – Semen from old and injured bulls cannot be used.

Bottled juices are clarified using

(A) lipase

(B) pectinase

(C) protease

(D) both (B) and (C)

Option d – both (B) and (C)

Controlled breeding experiments are carried out by using

(A) interspecific hybridization

(B) cross-breeding

(C) artificial insemination

(D) out-crossing

Option c – artificial insemination

In paddy fields, which of the following microbes serve as an important biofertilizer?

(A) Aspergillus

(B) Staphylococci

(C) Cyanobacteria

(D) Trichoderma

Option c – Cyanobacteria

Complete the following analogy by selecting the correct option. Viral disease Tobacco mosaic::: Bacterial disease: …….

(A) Brown rust of wheat

(B) Black rot of crucifers

(C) Red rot of sugarcane

(D) Late blight of potato

Option b – Black rot of crucifers

We covered all the microbes in human welfare questions for neet above in this post for free so that you can practice well for the exam.

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