Question 1 :
Which of the following patterns of reproduction involves the exchange of genetic material?
Question 3 :
During favourable condition the encysted amoeba divides by multiple fission and produces pseudopodiospores. This phenomenon is known as<span><br></span>
Question 4 :
The process of development of organism like itself is called as<br/>
Question 5 :
........... form of asexual reproduction produces organisms in the form of fragments.
Question 8 :
The production of offsprings by sexual or asexual process is called as
Question 9 :
Reproducing new plants by cells instead of seeds is known as
Question 15 :
........... is the most convenient and cheap method of artificial vegetative propagation.<span><br/></span>
Question 21 :
Which one of the following generates new genetic combinations leading to mutations<span><br></span>
Question 23 :
Which of these organisms reproduce in the same way as yeast?
Question 24 :
The motile reproductive structures of algae and fungi, which directly give rise to new individuals are called<span><br></span>
Question 25 :
Which of the following statements can be related to sexual reproduction?
Question 26 :
The process of propagation of new individual from the existing one is called as
Question 27 :
Sexual reproduction involves formation of the male and female gametes by?
Question 32 :
The developing embryo in Hydra drops down from the body of the parent
Question 33 :
The daughter cells produced by a sexual reproduction are genetically identical to the parent cell.
Question 34 :
The best way to obtain bacterial and viruses free plants through tissue culture
Question 35 : During plant grafting, connection is made between stock and scion <div>through ...................</div>
Question 36 :
Which one of the following is the difference between asexual and sexual types of reproduction?<br/>
Question 38 :
Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because
Question 42 :
Select the correct statements from the following regarding asexual reproduction.<br/>A) It is slower than sexual reproduction<br/>B) It involves a single parent<br/>C) It produce progeny that are genetically identical with parent<br/>D) Clones are the progeny of asexual reproduction<br/>
Question 43 :
Which one of the following is propagated by means of cuttings?
Question 45 :
Offspring formed as a result of sexual reproduction exhibits more variations because<br/>
Question 46 :
Asexual reproduction is the _____ method of reproduction in organisms that have a relatively simple organisation like _______ and _______.<br>Fill in the blank in the above statement.
Question 47 :
Reproduction, unlike other life processes, is not essential to maintain the life of an individual organism.<br>
Question 49 :
Which of the following statements, supports the view that elaborate sexual reproductive process appeared much later in organic evolution.<br/>(i) Lower groups of organisms have simpler body design<br/>(ii) Asexual reproduction is common in lower groups <br/>(iii) Asexual reproduction is common in higher groups of organisms<br/>(iv) The higher incidence of sexual reproduction in Angiosperms and Vertebrates <br/>Choose the answer from the option given below: <br/><br/>
Question 50 :
Which one of the following is not a natural method of vegetative propagation?
Question 51 :
Assertion: Clones are produced by sexual reproduction and same sexual process.<br><br>Reason: These are prepared by group of cells descended from many cells or by inbreeding of a heterozygous line<br>
Question 53 :
Removal of a small part of plant with a knife is called as
Question 54 :
Choose the correct answer from the alternatives given.<br>In an experiment, oat (Avena sativa) seedlings were grown under the same conditions of temperature, moisture and light. Their tips were removed and divided into four groups. Each group was given different treatments and the growth was measured carefully after keeping them in dark for 16 Firs. Which of the following groups had the most growth?
Question 56 :
Which of the following types of reproduction leads to the variation in the population?
Question 57 :
Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread?<br>
Question 58 :
Which of the following patterns of reproduction is the major cause of variation?
Question 59 :
When a cut portion of plant forms a full adult plant, it is called as
Question 60 :
If a population of $50$ paramecium present in a pool increases to $150$ after an hour, what would be the growth rate of population?
Question 61 :
Assertion: Amoeba shows multiple fission during unfavourable conditions.
Reason: Chances of survival are less during unfavourable conditions.
Question 64 :
<span>Choose the correct statements from the options below with regard to sexual reproduction.</span><br/>(i) Sexual reproduction does not always require two individuals.<br/>(ii) Sexual reproduction generally involves gametic fusion.<br/>(iii) Meiosis never occurs during sexual reproduction.<br/>(iv) External fertilization is a rule during sexual reproduction.<br/><br/>
Question 66 :
<span>The technique of rapid vegetative propagation of plants of agricultural and horticultural value involving cell and tissue culture is popularly known as micropropagation.</span>
Question 67 :
Development of animal embryo from egg without fertilization is called as<br/>
Question 69 :
If the scion of a sweet and fleshy plant is grafted with a stock of sour and fibrous plant, then the fruit will be
Question 73 :
What observation can be made by viewing the slides under the microscope on binary fission in Amoeba and budding in yeast?
Question 75 :
Which of the following cannot regenerate with the help of layering?
Question 79 :
In a grafted plant, stock has $48$ chromosomes while scion has $24$ chromosomes. The chromosome number for root cells and eggs are.
Question 81 :
Vegetative reproduction in plants like citrus, jasmine and grape wine is done by the process of
Question 82 :
The phenomenon which shortens the vegetative period and hastens the flowering is known as
Question 83 :
For union between stock and scion in grafting which one is the first to occur.
Question 85 :
Write the most appropriate answer from the given options. <br>Vegetative reproduction yield can be increase by......
