TN Online TestSamacheer Kalvi practice

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

Pick how many questions you want and set a time limit, then start. You'll get your score at the end with the correct answer and an explanation for every question. Free, in Tamil and English — 15 questions available.

Set up your test

Number of questions

Time limit

Time remaining00:00

The development of improved crop varieties with higher yield, better quality and shorter duration is called

A.Crop improvement B.Crop rotation C.Crop protection D.Crop storage

Breeding between animals of the same breed is called

A.Outbreeding B.Inbreeding C.Cross breeding D.Hybridisation

The cross between two different breeds of animals is known as

A.Inbreeding B.Outbreeding C.Selection D.Cloning

The superiority of a hybrid obtained by cross breeding is called

A.Inbreeding depression B.Heterosis C.Mutation D.Selection

The manipulation and transfer of genes from one organism to another is called

A.Genetic engineering B.Tissue culture C.Mass selection D.Vaccination

Undifferentiated or unspecialised masses of cells that can be used in therapy are called

A.Nerve cells B.Stem cells C.Blood cells D.Muscle cells

Golden rice was developed to correct the deficiency of

A.Vitamin A B.Vitamin C C.Iron D.Iodine

The Bt gene used to make insect resistant crops is obtained from

A.a virus B.a bacterium C.a fungus D.an alga

Variable number tandem repeats used in DNA fingerprinting are also known as

A.Vector DNA B.Satellite DNA C.Recombinant DNA D.Single stranded DNA

Q10

DNA fingerprinting is widely used in forensic work mainly for

A.identifying the culprit in a crime B.increasing crop yield C.producing vaccines D.cutting DNA strands

Q11

The DNA molecule that carries a desired gene into a host cell is called a

A.Vector B.Enzyme C.Hormone D.Toxin

Q12

Approximately how many base pairs does the human genome contain?

A.3 million B.3 billion C.30 thousand D.300

Q13

Selection of the best plants from a mixed population, keeping their seed for the next sowing, describes

A.Mass selection B.Hybridisation C.Mutation breeding D.Genetic engineering

Q14

Crops carrying a gene introduced from another organism are called

A.Hybrid crops B.Transgenic crops C.Pureline crops D.Clonal crops

Q15

Treatment of a disorder by introducing undifferentiated cells into the body is called

A.Gene therapy B.Stem cell therapy C.Chemotherapy D.Physiotherapy

More for this chapter

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

More chapters in Science

View all

1 Laws of Motion 2 Optics 3 Thermal Physics 4 Electricity 5 Acoustics 6 Nuclear Physics 7 Atoms and Molecules 8 Periodic Classification of Elements 9 Solutions 10 Types of Chemical Reactions 11 Carbon and Its Compounds 12 Plant Anatomy and Plant Physiology 13 Structural Organisation of Animals 14 Transportation in Plants and Circulation in Animals 15 Nervous System 16 Plant and Animal Hormones 17 Reproduction in Plants and Animals 18 Genetics 19 Origin and Evolution of Life 21 Health and Diseases 22 Environmental Management 23 Visual Communication