Q. No.Roots arising from the parts of a plant other than radical are called as:
1. Tap root
2. Fibrous roots
3. Adventitious roots
4. Lateral roots
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In a flower, if the gynoecium occupies the highest position, the flower is said to be:
| 1. Superior | 2. Inferior |
| 3. Hypogynous | 4. Epigynous |
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The stems of maize and sugarcane have:
| 1. | stilt roots that are hanging and supporting structures |
| 2. | prop roots that are hanging and supporting structures |
| 3. | prop roots coming out from the nodes in upper stem |
| 4. | supporting stilt roots coming out of the lower nodes of the stem |
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What is not true for a stem in a flowering plant in general?
1. Negatively geotropic
2. Develops from plumule of the germinating embryo
3. Absence of terminal and axillary buds
4. Spreads out branches bearing leaves, flowers and fruits
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Stem tendrils are present in all the following except:
| 1. Citrus | 2. Watermelon |
| 3. Cucumber | 4. Grapevines |
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Match each item in Column I regarding structure of a dicotyledonous seed with description in Column II and select the correct option from the codes given below:
|
|
COLUMN I |
|
COLUMN II |
|
A |
Testa |
a |
Outer layer of seed coat |
|
B |
Tegmen |
b |
Inner layer of seed coat |
|
C |
Hilum |
c |
Scar on seed coat through which the developing seeds were attached to the fruit |
|
D |
Micropyle |
d |
Small pore through which pollen tube penetrates |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | c | d |
| 3. | b | a | d | c |
| 4. | a | b | d | c |
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Stems contain chlorophyll and carry out photosynthesis in:
| 1. Opuntia and Euphorbia | 2. Mint and Jasmine |
| 3. Pistia and Eichhornia | 4. Banana and Pineapple |
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A lateral branch arises from the base of the main axis and after growing aerially for some time arches downwards to touch the ground in:
| 1. Opuntia and Euphorbia | 2. Mint and Jasmine |
| 3. Pistia and Eichhornia | 4. Banana and Pineapple |
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A lateral branch with short internodes and each node bearing a rosette of leaves and tufts of roots is found in:
| 1. Opuntia and Euphorbia | 2. Mint and Jasmine |
| 3. Pistia and Eichhornia | 4. Banana and Pineapple |
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