Tamil Nadu SSLC (Class 10) Breeding and Biotechnology — practice questions
29 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Tamil Nadu SSLC (Class 10) Breeding and Biotechnology in the app →Who is honoured with the title 'Father of the Green Revolution' for developing high-yielding wheat varieties aThe high-yielding semi-dwarf rice variety IR-8, popularly called 'Miracle Rice', was developed by which institWhich crop variety is bred specifically for resistance to bacterial blight?Biofortification is best described as the process of developing crop plants that are:Protina, Shakti and Rathna are biofortified maize hybrids developed in India that are rich in:An inexperienced farmer can most easily practise which method of crop improvement?A group of plants raised from a single parent plant through vegetative or asexual reproduction is called a:An organism whose somatic cells contain more than two complete sets of chromosomes is said to be:Which chemical is commonly used to double the chromosome number and induce polyploidy in plants?Triticale, the first man-made cereal, is obtained by crossing wheat with which other cereal?A sudden heritable change in the nucleotide sequence of DNA in an organism is termed:Atomita-2, a rice variety able to tolerate saline soils, was produced by which breeding method?The mating of closely related animals within the same breed for about four to six generations is called:Continued inbreeding in animals reduces fertility and productivity. This decline is known as:The superiority of a hybrid over both its parents, obtained through cross breeding, is called:A mule, produced by cross breeding, is superior to a horse in strength and disease resistance but has which liGenetic engineering, in which genes are transferred between organisms to create new DNA, is also known as:Restriction enzymes, often called 'molecular scissors', act on DNA by:In a bacterial cell, the small circular double-stranded DNA molecule that lies separate from the chromosomal DRecombinant DNA (rDNA) is best defined as:The first pharmaceutical product commercially manufactured using recombinant DNA technology, by Eli Lilly in 1Gene therapy that targets and corrects a defective gene in non-reproductive body cells is called:Embryonic stem cells, which can develop into any cell type of the body, are derived from which part of the blaIn treating neurodegenerative disorders such as Parkinson's and Alzheimer's disease, which cells can replace tDNA fingerprinting, a quick method to distinguish individuals, was developed by:DNA fingerprinting relies mainly on the variation between individuals in their:Golden Rice is a genetically modified crop developed by inserting a gene for the synthesis of:The Bt gene used to make insect-resistant GM crops is obtained from which organism?In hexaploid wheat where 2n = 6x = 42, the haploid (n) and basic (x) chromosome numbers are respectively: