TN Online TestSamacheer Kalvi practice

Breeding and Biotechnology Book Back One Mark Online Test (10th Standard Science)

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Which method of crop improvement can be practised by a farmer if he is inexperienced?

A.clonal selection B.mass selection C.pureline selection D.hybridisation

Pusa Komal is a disease resistant variety of __________ .

A.sugarcane B.rice C.cow pea D.maize

Himgiri developed by hybridisation and selection for disease resistance against rust pathogens is a variety of ___________ .

A.chilli B.maize C.sugarcane D.wheat

The miracle rice which saved millions of lives and celebrated its 50th birthday is _______

A.IR 8 B.IR 24 C.Atomita 2 D.Ponni

Which of the following is used to produce products useful to humans by biotechnology techniques?

A.enzyme from organism B.live organism C.vitamins D.both (a) and (b)

We can cut the DNA with the help of

A.scissors B.restriction endonucleases C.knife D.RNAase

rDNA is a

A.vector DNA B.circular DNA C.recombinant of vector DNA and desired DNA D.satellite DNA

DNA fingerprinting is based on the principle of identifying --------------- sequences of DNA

A.single stranded B.mutated C.polymorphic D.repetitive

Organisms with modified endogenous gene or a foregin gene are also known as

A.transgenic organsims B.genetically modified C.mutated D.both a and b

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Book Back Questions9 textbook MCQs · solved Additional MCQs15 extra MCQs · solved Practice TestInteractive · instant score Additional MCQ TestTest yourself on the extra set

About this Breeding and Biotechnology test

This free online practice test covers Breeding and Biotechnology from the 10th Standard Science (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

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