Cymose Inflorescence

Q. Which of the following statements is incorrect regarding cymose inflorescence?

1. Growth of peduncle is definite
2. Flowers are borne in a basipetal succession
3. Growth of peduncle is indefinite
4. Cymose inflorescence is seen in jasmine

Q. A pollen grain in angiosperm at the time of dehiscence from an anther could be 2 - celled or 3 - celled. Explain. How are the cells placed within the pollen grain when shed at a 2 - celled stage? [2]

Q.

In cymose inflorescence, the flowers are borne in:

1. Basipetal order

2. Acropetal order

3. Centripetal order

4. Any of the others

Q. Fill in the blanks:

a. In racemose type of inflorescence, the flowers are borne laterally in a ...1.. succession.

b. In cymose type of inflorescence, the flowers are borne in a ...2... order.

1. 1 - basipetal, 2 - basipetal
2. 1 - acropetal, 2 - acropetal
3. 1 - basipetal, 2 - acropetal
4. 1 - acropetal, 2 - basipetal

Q.

Differentiate between

(a) Racemose and cymose inflorescence

(b) Fibrous roots and adventitious roots

(c) Apocarpous and syncarpous ovary

Q. Assertion :In imbricate aestivation, out of five petals, one is completely internal. One is completely external and in each of the remaining three petals, one margin is internal and the other is external.
Reason: Ascending imbricate aestivation is found in Cassia and gulmohar.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. In Cauliflower, the inflorescence is?

1. Umbel of umbels
2. Corymb of corymbs
3. Panicle
4. Thyrsus

Q. In Gramineae/Poaceae, the inflorescence is

1. Cyathium
2. Spikelet
3. Corymb
4. Spadix

Q. In Mirabilis plant, inheritance of leaf colour is due to plastids. If pollen grain of variegated branch is used to pollinate the stigma of green branch flower, the result is

1. Only green leaves
2. Only variegated leaves
3. Green, pale and variegated leaves
4. Both A and B

Q. What type of inflorescence does the given figure show?

1. Uniparous cyme
2. Multiparous cyme
3. Biparous cyme
4. Racemose

Q. In which of the following, the growing point ends in a flower?

1. Verticillaster
2. Catkin
3. Raceme
4. Spike

Q. In Dorstenia, the inflorescence is?

1. Coenanthium
2. Anthodium
3. Spike of spikes
4. Spikelet

Q. Which of the following statements is incorrect regarding cymose inflorescence?

1. Growth of peduncle is definite
2. Flowers are borne in a basipetal succession
3. Cymose inflorescence is seen in jasmine
4. Growth of peduncle is indefinite

Q. An anther dehiscence towards the periphery of the flower is known as

1. Both A and B
2. None of the above
3. Extrose
4. Introse

Q. Umbel inflorescence occurs in?

1. Coriandrum
2. Colocasia
3. Musa
4. Sunflower

Q. Cymose inflorescence is present in

1. Solanum
2. Brassica
3. Trifolium
4. Sesbania

Q. The type of corolla aestivation in pea flower is

1. Valvate
2. Twisted
3. Imbricate
4. Vexillary

Q. Which of the following statements is incorrect regarding cymose inflorescence?

1. Cymose inflorescence is seen in jasmine
2. Growth of peduncle is definite
3. Growth of peduncle is indefinite
4. Flowers are borne in a basipetal succession

Q. When did flowering occurs last time in Strobilanthus kunthiana?

Q. Find the odd one (inflorescence axis elongation).

1. Catkin
2. Spike
3. Umbel
4. Raceme