Q321
Open questionDown's syndrome is due to
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Biology GK · all questionsGentics and Evoloution
Gentics and Evoloution
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Q322
Open questionConsider the following statements regarding Lamarckism and choose the correct answer:
1. Lamarck believed that change of form of either plants or animals was due to change in environment
2. Lamarck had the idea that organs of plants and animals are developed according to their urgent need
3. Constant use or exercise of organs results in the formation of new organs or increase in size
4. The living beings both plants and animals produce in nature more offsprings than could ordinarily survive
1. Lamarck believed that change of form of either plants or animals was due to change in environment
2. Lamarck had the idea that organs of plants and animals are developed according to their urgent need
3. Constant use or exercise of organs results in the formation of new organs or increase in size
4. The living beings both plants and animals produce in nature more offsprings than could ordinarily survive
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Q323
Open questionThe form of micorrhizal association where the fungus lives in the intercellular spaces as well as in the cortical cells is known as
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Q324
Open questionThalassemia is a hereditary disease. It affects
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Q325
Open questionFormation of RNA (mRNA) over DNA template is called
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Q326
Open questionWho proposed the Big-Bang theory?
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Q327
Open questionConsider the following statements
1. Pasteur's swan neck experiment proved that new organisms arise from pre-existing ones.
2. Theory of Use and Disuse of Organs was given by Lamarck.
3. Darwin wrote the book 'On the Origin of Species by Means of Natural Selection' in 1859.
4. Lamarck wrote the book 'Philosophie Zoologique'.
Which of the statements given above is/are true?
1. Pasteur's swan neck experiment proved that new organisms arise from pre-existing ones.
2. Theory of Use and Disuse of Organs was given by Lamarck.
3. Darwin wrote the book 'On the Origin of Species by Means of Natural Selection' in 1859.
4. Lamarck wrote the book 'Philosophie Zoologique'.
Which of the statements given above is/are true?
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Q328
Open questionWhich of the following biofertilizers include such microorganisms which solubilize bound phosphate of rock and soil to increase the availability of soluble phosphate to the plants?
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Q329
Open questionFor how many years have the dinosaurs been extinct?
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Q330
Open questionDNA test was developed by
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Q331
Open questionOne crossover appears to reduce the possibility of another one in its neighbourhood. This phenomenon is referred to as
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Q332
Open questionWhich one among the following is not correct about Down's syndrome?
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Q333
Open questionThe sterilizing agents for callus cultures include
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Q334
Open questionEnergy for the creation of first organic compounds was probably provided by
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Q335
Open questionAbiogenesis means
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Q336
Open questionThe kind of polyploid usually arising by crossing between organisms of different ploidy level is known as
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Q337
Open questionAs the loss of a fragment results in deletion of genes, inversions are sometimes referred to as
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Q338
Open questionWhich of the following factors resulted in the phenomenon called struggle for existence?
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Q339
Open questionWhich of the following features of DNA make if unequally suited to store and transmit genetic information from generation to generation?
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Q340
Open questionThe protein chain elongation factors in prokaryotes are
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