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प्रश्न
Name one organism which reproduces by spore formation
उत्तर
Fungi reproduce through spore formation; for e.g., bread moulds.
APPEARS IN
संबंधित प्रश्न
Name the part of Bryophyllum where the buds are produced for vegetative propagation.
When a broken piece of the stem of a plant X is planted in the soil, a new plant grows from it in a week's time. The leaves of plant X also have many small entities Y in their margins which can fall to the ground alone or alongwith leaves and grow into new plants.
(a) Name a plant which X could be.
(b) What are the entities Y present on the leaves of X known as?
(c) Name a plant other than X which can be reproduced from its leaves.
(d) Name a common plant grown in many homes which can be propagated from its broken stems like plant X.
(e) Name a kind of dormant organs present in dry stems of old grass plants lying in the fields which get activated and produce green grass plants after the rains.
Write a short note on Micro propagation.
Name the following :
Explain the structure and the function of the structures released from the ‘blobs’ in Rhizopus.
A student was given two permanent slides, one of binary fission in Amoeba and other of budding in yeast. He was asked to identify any one difference in the nucleus of the two. One such difference, he identified correctly was
(1) Presence of one nucleus in Amoeba, two in yeast cell and one in bud.
(2) Presence of two nuclei in centrally constricted Amoeba, one in yeast cell and one in its bud.
(3) Presence of two distant nuclei in Amoeba, one in yeast cell and two in bud.
(4) Presence of a single nucleus each in Amoeba, yeast cell and its attached bud.
Draw a labelled diagram in proper sequence to show budding in hydra.
Write four lines on the following: Budding
Define.
Fragmentation
Offspring formed by asexual method of reproduction have greater similarity among themselves because
- asexual reproduction involves only one parent
- asexual reproduction does not involve gametes
- asexual reproduction occurs before sexual reproduction
- asexual reproduction occurs after sexual reproduction
Which of the following statements are true for flowers?
- Flowers are always bisexual
- They are the sexual reproductive organs
- They are produced in all groups of plants
- After fertilisation they give rise to fruits
