Multiple Choice QuestionsThe edible dry fruit 'chigoza' is
fruit of Cycas
fruit of Pinus gerardiana
seed of Cycas
seed of Pinus gerardiana
What differentiates leaf of dicots from monocots?
Parallel venation
Differentiation of palisade and spongy parenchyma
Stomata only on upper side
Stomata both on upper and lower sides
B.
Differentiation of palisade and spongy parenchyma
Main differences between dicot and monocot leaves are as follows:
| Character | Dicot leaf | Monocot leaf |
| Type of leaf | Dorsiventral | Isobilateral |
| Stomata | Have more stomata on lower epidermis. | Have an equal number of stomata on upper and lower epidermis. |
| Mesophyll | Differentiated into 2 parts: upper palisade and lower spongy. | Undifferentiated |
| Bundle sheath | It is single layered and made up of parenchymatous cells. | It may be single or double layered and made up of sclerenchymatous cells. |
| Bulliform cells | Absent | Present; it helps in rolling and unrolling of leaves. |
| Venation | Reticulate | Parallel |
Trimerous flower, superior ovary and axile placentation is characteristics of
Liliaceae
Cucurbitaceae
Solanaceae
Compositae
During meiotic division, the
homologous chromosomes are seperated
linkage is disturbed
homologous chromosomes do not segregate
All of the above
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