(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
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Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.
Viruses are sub-microscopic infectious agents that can infect all living organisms. A virus consists of genetic material surrounded by a protein coat. The genetic material may be present in the...
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Exchange of genetic material take place in
Exchange of genetic material occurs during sexual reproduction. It involves male and female gametes which exchange there genetic material during the process of genetic recombination.
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If any explosion takes place at the bottom of a lake, what type of shock waves in water will take place?
Longitudinal waves
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Can you name the two organelles we have studied that contain their own genetic material?
Mitochondria and plastids are the two organelles that contain their own genetic material. Both these organelles have their own DNA and ribosomes
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Name the two organelles in a plant cell that contain their own genetic material and ribosomes.
Hint— Mitochondria and plastids
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Among the five factors that are known to effect Hardy-Weinberg equilibrium, three factors are gene flow, genetic drift and genetic recombination.
Natural selection and mutation.
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Recall the experiment done by Frederick Griffith. If RNA, instead of DNA was the genetic material
RNA is more labile and prone to degradation (owing to the presence of 2’ OH group in its ribose). Hence heat-killed S-strain may not have retained its ability to transform...
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The National Stock Exchange of India was recognized as stock exchange in the year (a) 1992 (b) 1993 (c) 1994 (d) 1995
(b) National Stock Exchange of India was promoted by financial institutions and established as a public limited company in 1992. However, it was ‘recognized as a stock exchange‘ in April,’1993‘ under...
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The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in –
(d) capillaries
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The final proof for DNA as the genetic material came from the experiments of : (1) Hershey and Chase
The correct answer is (1) Hershey and Chase proved that DNA as genetic material. They used bacteriophage for their experiment.
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