Anderson quoted

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#Question id: 12519

#Unit 6. System Physiology – Plant

Some given  statements about biosynthesis of Abscisic acid ;

a) ABA is synthesized in almost all cells that contain chloroplasts or amyloplasts

b) ABA is a 15-carbon terpenoid, or sesquiterpenoid, which is synthesized in plants by an indirect pathway via 40-carbon carotenoid intermediates

c) Cleavage of the carotenoid by the enzyme NCED (9-cis-epoxycarotenoid dioxygenase) is a rate-limiting

d) Oxidation by ABA-8′-hydroxylases lead to ABA inactivation, ABA can also be inactivated by conjugation, but this is irreversible. Both types of inactivation are also tightly regulated.

Which of the following  combination from the above statements  is correct?

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#Question id: 8850

#Unit 9. Diversity of Life Forms

Whatever its ultimate cause(s), the Cambrian explosion is a prime example of

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#Question id: 10132

#Unit 6. System Physiology – Plant

Which of the following statements would be correct for photophosphorylation ?

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#Question id: 5360

#Unit 8. Inheritance Biology

Following some different genetic disorder traces in families. 

Family	Father	Mother	Son	Daughter
A	Affected	Affected	Unaffected	Unaffected
B	Affected	Affected	Unaffected	Affected
C	Unaffected	Unaffected	Undetermined	Affected
D	Affected	Unaffected	Unaffected	Affected

 Which of the following possible mode of inheritance in the Family A, B, C and D respectively

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#Question id: 11141

#Unit 7. System Physiology – Animal

The operation of the sodium-potassium pump moves ________.