GATE XL kind:question PYQs & Answers — Page 104

Questions 1031–1040 of 1235. Imported answers require independent review unless marked reviewed.

Topic practice 1235 questionsPage 104 of 124

Which of the following genera produces dimorphic seeds that help to broaden the time of germination in a variable habitat?

Your answerChoose one option.

Xanthium

Pisum

Mangifera

Linum

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The genes for microRNA (miRNA) in plants are usually transcribed by

Your answerChoose one option.

RNA polymerase I

RNA polymerase II

RNA polymerase III

RNA polymerase IV

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Which of the statements is TRUE for transpos[e] elements Ac and Ds?

Your answerChoose one option.

Both Ac and Ds are autonomous because they encode their own transposase

Both Ac and Ds are non-autonomous because they do not encode their own transposase

Only Ac is autonomous because it encodes its own transposase

Only Ds is autonomous because it encodes its own transposase

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Identify the CORRECT statement.

Your answerChoose one option.

Receptor-like kinases play role in gametophytic self-incompatibility in Brassicaceae

Receptor-like kinases play role in sporophytic self-incompatibility in Solanaceae

Ribonucleases play role in sporophytic self-incompatibility in Brassicaceae

Ribonucleases play role in gametophytic self-incompatibility in Solanaceae

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Which of the following statements is TRUE for an ecotone?

Your answerChoose one option.

An ecotone is the synonym of an ecosystem

An ecotone is an interface zone of two or more ecosystems

An ecotone is a special feature of land biomes

An ecotone is exclusively characterized by decreased biodiversity

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Acid rain with a pH of 4.0 is more acidic than the rain with a pH of 6.0 by

Your answerChoose one option.

2 times

10 times

100 times

1000 times

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Which of the following plants produces Ylang-ylang oil?

Your answerChoose one option.

Cananga odorata

Careum copticum

Pandanus odoratissimus

Pimenta racemosa

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Identify the INCORRECT statement in connection with polar transport of auxin.

Your answerChoose one option.

The putative influx carrier AUX1 is a cytosolic protein

Polar auxin transport in root tends to be both acropetal and basipetal in direction

Naphthylphthalamic acid (NPA) is an inhibitor of polar auxin transport

AUX1 and PIN1 proteins are located in the opposite ends of a cell for polar transport

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Which of the following stains is used to visualize callose under the microscope?

Your answerChoose one option.

Alcian blue

Aniline blue

Toluidine blue

Thymol blue

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The coding sequence of a gene XLR18 has the single ORF of 783 bp. The approximate molecular weight of the XLR18 protein in kDa is _____.

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GATE XL kind:question PYQs

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Question 10