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प्रश्न
Write the correct option from the given multiple options.
Vegetative propagation is performed with the help of ..........................in sweet potato.
a) root
b) stem
c) leaf
d) flower.
उत्तर
a) Root
APPEARS IN
संबंधित प्रश्न
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.
Draw a labelled diagram to show that particular stage of binary fission in amoeba in which its nucleus elongates and divide into two and a constriction appears in its cell membrane.
How the process of regeneration in Planaria process different from reproduction?
On cutting the body of an organism into many pieces it was observed that many of these pieces developed as new individuals. Name the process and list two organisms in which this process may be observed. Draw a schematic diagram to illustrate the changes that are likely to be observed during the development of new individuals in any one of the organisms named.
Can you think of reasons why more complex organisms cannot give rise to new individuals through regeneration?
Binary fission is a method of asexual reproduction.
Name the asexual method of reproduction in yeast.
Name the asexual method of reproduction in Hydra
Describe the layering method for the artificial propagation of plants. Illustrate your answer with the help of a labelled diagram. Name any five plants which are propagated by the layering method.
Why does bread mould grow profusely on a moist slice of bread but not on a dry slice of bread?
Name two fruit trees which are usually propagated by grafting method.
Two very small organisms X and Y both reproduce by the method of budding. Organism X is industrially very important because it is used in making alcohol from sugar. It is also used in making bread. Organism Y Lives in freshwater. If organism Y gets cut into a number of parts accidently, each cut part can grow to form complete organism.
(a) What are organisms X and Y?
(b) What is the name of the process in which X converts sugar into alcohol?
(c) To which class of organisms does X belong?
(d) Name an important body feature of organism Y.
(e) Which organism is multicellular and which one is unicellular?
Fill in the following blank with suitable word :
The process of fusion of gametes is called .............
State whether the following statement IS true (T) or false (F):
Asexual reproduction is more common than the sexual reproduction.
Differentiate between the following:
Binary fission and budding
Mention the common method of reproduction in Mucor.
Mention the common method of reproduction in Jasmine.
Choose the correct statement(s) on budding in yeast from the following :
I. A parent cell divides into two or more daughter cells and here the parent identity is lost.
II. In this the elongated nucleus divides to form two or more daughter nuclei.
III. A bud arises from a particular region on a parent body.
IV. After detaching from the parent body the bud grows into a new independent individual.
(A) I only
(B) III only
(C) II and III only
(D) III and IV only
List two advantages of vegetative reproduction practiced in case of an orange plant.
After observing the prepared slides of binary fission in Amoeba and budding in yeast following observations were reported:
(a) Single cells of Amoeba and yeast were undergoing binary fission and budding respectively.
(B) Cytokinesis was observed in the yeast cell.
(C) Elongated nucleus was dividing to form two daughter nuclei in Amoeba.
(D) A chain of buds were observed due to reproduction in Amoeba.
The correct observation(s) is/are:
(A) a and c
(B) b only
(C) c and d
(D) d, a and c
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
In which of the following figures is budding not shown?
(A) I
(B) II
(C) III
(D) IV
Name the mode of reproduction process seen in yeast.
List in tabular form two differences between binary fission and multiple fission.
Name four plants which can be propagated by root-cutting
Name the parts of the plants used to grow following flower: Gladiolus
Give the name of the plant that reproduces vegetatively by: Leaves
Give the name of the plant that reproduces vegetatively by: Underground stem
The asexual reproduction in bacteria occurs by ______.
In Rhizopus, tubular thread-like structures bearing sporangia at their tips are called ______
Which is the most common method of reproduction in the majority of fungi and bacteria?
Many unicellular organisms reproduce by the process of ______
Hydra usually reproduces by ______
Offspring formed by the asexual method of reproduction have greater similarities among themselves because ______
(i) asexual reproduction involves only one parent
(ii) asexual reproduction does not involve gametes
(iii) asexual reproduction occurs before sexual reproduction
(iv) 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
In Figure, the parts A, B and C are sequentially
