MHT-CET

10. Plant Growth And Development question bank (Biology)

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Q1.

Based on the following statements,choose the correct option given below.
Statement $I$: Dormancy is a state of metabolic arrest that facilitates the survival of seeds during unfavourable conditions.
Statement $II$: Mature and viable seeds do not germinate even in the presence of favourable conditions unless the dormancy period is completed.

(A)

Both Statement $I$ and Statement $II$ are correct

(B)

Statement $I$ is correct but Statement $II$ is incorrect

(C)

Both Statement $I$ and Statement $II$ are incorrect

(D)

Statement $I$ is incorrect but Statement $II$ is correct

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Q2.

Which of the following statements are $INCORRECT$ with respect to phytochrome?
$i$. Phytochrome is a light-receiving proteinaceous pigment present in the leaves of plants.
$ii$. Phytochrome pigment exists in two forms.
$iii$. Two forms of phytochromes are interconvertible.
$iv$. Phytochromes are located in the chloroplast of green cells.
$v$. Phytochrome $P_r$ form inhibits flowering in $LDP$ during the dark period.

(A)

$i$ only

(B)

$i, ii$ and $iii$ only

(C)

$i, ii$ and $iv$ only

(D)

$iv$ only

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