Which event is nearest in time to the end of the period known as snowball Earth?

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#Question id: 18392

#SCPH06 I Botany

How Deinococcus radiodurans are naturally resistant to quite high levels of ionizing radiation

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#Question id: 10412

#SCPH06 I Botany

Red and far-red lights are perceived by plants through various photoreceptors including phytochromes. The red/far-red reversibility of seed germination was due to the-

a) photoreversibility of phytochrome

b) presence of red and far-red light at different fluence rate

c) Conversion of Pr to Pfr form through the effect of red light

d) equal proportion of red and far red light at same fluence rate

Which of the following combinations is correct?

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#Question id: 4322

#SCPH28 | Zoology

If a particular operon encodes enzymes for making an essential amino acid and is regulated like the trp operon, then

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#Question id: 403

#SCPH01 Biochemistry

For the reaction A -> B, DG'° = –60 kJ/mol.  The reaction is started with 10 mmol of A; no B is initially present.  After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the most likely explanation?

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#Question id: 755

#SCPH01 Biochemistry

Enzymes that regulate the process of supercoiling termed as;