Who discovered jumping genes in maize?

Who discovered jumping genes in maize?

Options

(a) Milton Rand (b) Hugo de Vries (c) Keith Porter (d) Barbara mc Clintock

Correct Answer:

Barbara mc Clintock

Explanation:

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The pigment haemocyanin is found in

The pigment haemocyanin is found in

Options

(a) chordata (b) mollusca (c) annelida (d) echinodermata

Correct Answer:

mollusca

Explanation:

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Histamines are secreted by

Histamines are secreted by

Options

(a) mast cells (b) macrophages (c) Kupffer cells (d) Nissl’s granules

Correct Answer:

mast cells

Explanation:

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IUPAC name of CH₃–O–C₂H₅ is

IUPAC name of CH₃–O–C₂H₅ is

Options

(a) ethyl-methyl ether (b) methoxyethane (c) methyl-ethyl ether (d) none of these

Correct Answer:

methoxyethane

Explanation:

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Decomposers are

Decomposers are

Options

(a) autotrophs (b) autoheterotrophs (c) heterotrophs (d) organotrophs

Correct Answer:

heterotrophs

Explanation:

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