MCQ
Select the correct statement about G1 phase.
- ACell is metabolically inactive.
- BDNA in the cell does not replicate.
- CIt is not a phase of synthesis of macromolecules.
- DCell stops growing.
Explanation:
G1 belongs to interphase of cell cycle which is metabolically active stage. During G1, synthesis of ATP, nucleotides, amino acids, RNAs and proteins take place. DNA replicate in S-phase of the cell cycle and not in G1 phase.
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$II.$ Protection of leaves from microbes
$III.$ Gaseous exchange
$IV.$ Reduction in the rate of transpiration through epidermal cells due to trichomes
Which of the function of epidermis is/are relevant from the above given statements?
$I$. they are nucleated
$II$. they are denucleated like $RBC$
$III$ they are $6000-8000 \;m m ^{-3}$ of blood
$IV$. they are long lived
$V$, they are short lived
Choose the appropriate option with correct properties