On looking at the cloudless sky, Peter said, "It won't rain today."

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#Question id: 50

#XL - Q Biochemistry

The enzyme fumarase catalyzes the reverse hydration of fumaric acid to l-malate, but it will not catalyze the hydration of maleic acid, the cis isomer of fumaric acid. This is an example of:

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#Question id: 3780

#XL - Q Biochemistry

If a cell were unable to produce histone proteins, which of the following results would be a likely effect on the cell?

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#Question id: 20200

#XL - P Chemistry

The energy of second Bohr orbit of the hydrogen atom is –328 kJ mol^–1, hence the energy of fourth Bohr orbit would be

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#Question id: 8923

#XL - T Zoology

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

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#Question id: 1092

#XL - Q Biochemistry

Which of the following statements is true of steroid receptors?