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प्रश्न
Draw a neat and labelled diagram.
Spore formation
उत्तर
APPEARS IN
संबंधित प्रश्न
Differentiate between 'stem tuber' and 'tuberous root'.
For binary fission, Amoeba required .................... parent cells.
(a) Three
(b) Two
(c) One
(d) Zero
Students were asked to observe the permanent slides showing different stages of budding in yeast under high power of a microscope.
(A) Which adjustment screw (coarse/fine) were you asked to move to focus the slides?
(B) Draw three diagrams in correct sequence showing budding in yeast.
What is vegetative propagation?
Describe reproduction by spores in Rhizopus
Name one organism which reproduces by spore formation
Explain why, more complex multicellular organisms cannot give rise to new organisms through regeneration.
Name one organism which reproduces by binary fission and another which reproduces by multiple fission.
State whether the above named organisms are animals or plants.
what is the name of the process by which Amoeba reproduces?
What is the difference between the two asexual methods of reproduction : fission and fragmentation?
Name one organism which reproduces by fission and another which reproduces by fragmentation.
Describe the process of reproduction in Hydra with the help of labelled diagrams. What is the name of this process of reproduction?
What is yeast? Describe the process of reproduction in yeast with the help of labelled diagrams.
What is meant by 'grafting' as a means of propagation in plants?
What care should be taken while making a cutting from a plant?
Describe the cuttings method for the artificial propagation of plants. Illustrate your answer with the help of labelled diagrams.
One of the following organisms does not reproduce by budding. This is :
(a) Sponge
(b) Yeast
(c) Hydra
(d) Planaria
The unicellular organism which reproduces by budding is :
(a) Spirogyra
(b) Hydra
(c) Planaria
(d) Yeast
The thread like structures that develop on a moist slice of bread in Rhizopus are ______.
Fill in the following blank with suitable word :
The process of fusion of gametes is called .............
Briefly explain why a gardener prefers to grow certain plants vegetatively?
Fill in the blank:
Fungi, ferns and mosses reproduce by ____________________.
State whether the following statement is true (T) or false (F):
Bacteria and yeast reproduce by sexual reproduction.
Mention the common method of reproduction in Potato.
After viewing different slides, a student draws following diagrams. Select the one which depicts binary fission in Amoeba:
(A) a
(B) b
(C) c
(D) d
Describe regeneration in Planaria with the help of a suitable diagram.
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.
Write various advantages of vegetative propagation.
Name two flowering plants that reproduce both by seeds and by vegetative means.
Give the name of the plant that reproduces vegetatively by: Stem-cutting
What are the objectives of plant hybridisation?
Grafting is not possible in the monocots because they
Name any one plant in which double fertilization was discovered?
Seeds are the product of asexual reproduction.
A feature of reproduction that is common to Amoeba, Yeast, and Spirogyra is that ______
Which is the most common method of reproduction in the majority of fungi and bacteria?
Many unicellular organisms reproduce by the process of ______
In Figure, the parts A, B and C are sequentially
The part of a seed which is a source of food during germination of seed is ______.
