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question_answer1)
A potato tuber is sown in a pot and pot is placed in the freezer of refrigerator. New plants will:
A)
Emerge normally done
clear
B)
Not emerge done
clear
C)
Be without leaves done
clear
D)
be without flowers done
clear
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question_answer2)
Soil around stem of potato plant is constantly removed from very young stage so that only roots remain in the soil. Potato tubers in plant will be:
A)
Larger done
clear
B)
Smaller done
clear
C)
Formed normally done
clear
D)
not formed done
clear
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question_answer3)
Banana fruits are seedless, because:
A)
Auxins are sprayed for rapid development of fruit. done
clear
B)
Vegetative propagation of plant. done
clear
C)
They are triploid plants. done
clear
D)
Fruits are artificially ripened. done
clear
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question_answer4)
Reproducing new plants by cells instead of seeds is known as:
A)
Biofertiliser done
clear
B)
Mutation done
clear
C)
Tissue culture done
clear
D)
Antibiotics done
clear
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question_answer5)
The formation of gametophyte from the sporophyte (without meiosis) is called:
A)
Apospory done
clear
B)
Apogamy done
clear
C)
Agamospermy done
clear
D)
None of these done
clear
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question_answer6)
A small portion of cane-sugar stem between the two successive nodes is cut off and sown in the soil normally. New plants will be:
A)
formed normally done
clear
B)
not formed done
clear
C)
Without juice done
clear
D)
without nodes done
clear
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question_answer7)
Apomixis in plant means development of a plant:
A)
From root cuttings. done
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B)
Without fusion of gametes. done
clear
C)
From cuttings of stem. done
clear
D)
From fusion of gametes. done
clear
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question_answer8)
After culturing the anther of a plant, a few diploid plants were found along with haploid plants. The diploid plants could have arisen from:
A)
Generative cell of pollen done
clear
B)
Cells of anther wall done
clear
C)
Vegetative cell of pollen done
clear
D)
Exine of pollen wall done
clear
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question_answer9)
Carrot is micropropagated through:
A)
Embryo done
clear
B)
Embryoids done
clear
C)
Shoot culture done
clear
D)
Callus done
clear
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question_answer10)
Modified stem present in Gladiolus is:
A)
Bulb done
clear
B)
Rhizome done
clear
C)
Corm done
clear
D)
Bulbil done
clear
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question_answer11)
Examine the figures given below and select the right options out of (a- d); in which all the 4 items A, B, C and D are identified correctly
A)
B)
C)
D)
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question_answer12)
Match column-I with column- II and select the correct answer using the codes given below.
| Column-I(Name of the organism) | | Column-II(Haploid chromosome number in gamete) |
A. | Ophioglossum(fern) | I. | 23 |
B. | Rice | II. | 24 |
C. | Potato | III. | 12 |
D. | Man | IV. | 630 |
A)
A-I; B-II; C-III; D-IV done
clear
B)
A-II; B-III; C-IV; D-I done
clear
C)
A-III; B-IV; C-II; D-I done
clear
D)
A-IV; B-III; C-II; D-I done
clear
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question_answer13)
Which one of the following pair is correctly matched?
A)
Onion - Bulb done
clear
B)
Ginger - Sucker done
clear
C)
Chlamydomonas - Conidia done
clear
D)
Yeast - Zoospores done
clear
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question_answer14)
Sweet potato is a modification of:
A)
Stem done
clear
B)
Adventitious root done
clear
C)
Hypocotyl done
clear
D)
Flowering axis done
clear
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question_answer15)
In Onion, the edible swollen portion is:
A)
Aerial stem done
clear
B)
Underground stem done
clear
C)
Internodes done
clear
D)
Leaf bases done
clear
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question_answer16)
Which one of the following is a nut fruit?
A)
Betel nut done
clear
B)
Groundnut done
clear
C)
Cashew nut done
clear
D)
Walnut done
clear
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question_answer17)
Which one of the following is a fruit?
A)
Ginger done
clear
B)
Sweet potato done
clear
C)
Radish done
clear
D)
Lady's finger done
clear
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question_answer18)
Which of the following is cultivated through vegetative propagation?
A)
Banana and Ginger done
clear
B)
Potato and Sugarcane done
clear
C)
Dahlia and Rose done
clear
D)
All of the above done
clear
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question_answer19)
Rhizome reproduction is observed in:
A)
Solarium tuberosum done
clear
B)
Ginger done
clear
C)
Achyranthes done
clear
D)
All of the above done
clear
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question_answer20)
Roses and banana are usually propagate through
A)
Parthenocarpy done
clear
B)
Cutting done
clear
C)
Grafting done
clear
D)
Layering done
clear
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question_answer21)
.......................are thick walled spores produced by Rhizopus which are capable of withstanding unfavourable conditions?
A)
Chlamydospores done
clear
B)
Zoospores done
clear
C)
Oidia done
clear
D)
Sporangiospores done
clear
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question_answer22)
Vegetative reproduction in Cycas occurs by:
A)
Sporophyll done
clear
B)
Bulbils done
clear
C)
Scaly leaves done
clear
D)
Fragmentation done
clear
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question_answer23)
Artificial induction of roots on stems before it is separated from the parent plant for propagation is called:
A)
Root-stem joint done
clear
B)
Plant tissue culture done
clear
C)
Grafting done
clear
D)
Layering done
clear
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question_answer24)
Match the following columns and choose the correct option.
| Column-I | | Column-II |
A. | Clone | I. | Agamospermy |
B. | Plant apomixes | II. | Scion |
C. | Grafting | III. | Callus |
D. | Tissue culture | IV. | Flower |
E. | In florescence | V. | Ramet |
A)
A-V; B- I; C-II; D-III; E-IV done
clear
B)
A-IV; B-I; C-III; D-II; E-IV done
clear
C)
A-I; B-II; C-III; D-IV; E-V done
clear
D)
A-V; B-II; C-III; D-IV; E-I done
clear
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question_answer25)
Which the following statements are correct?
(i) Stamens are male reproductive part whereas carpels are female reproductive parts. |
(ii) In Spirogyra, asexual reproduction takes place by fragmentation. |
(iii) Vegetative propagation by leaves occurs in sweet potato. |
A)
(i) and (ii) done
clear
B)
(ii) and (iii) done
clear
C)
(i) and (iii) done
clear
D)
All of the above done
clear
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question_answer26)
Identify the correct option that describes all the three diagrams correctly.
A)
A-Male cockroach, B-Funaria, C-Unisexual flower done
clear
B)
A-Male cockroach, B-Marchantia, C-Bisexual flower done
clear
C)
A-Female cockroach, B-Cycas, C-Unisexual flower done
clear
D)
A-Female cockroach, B-Marchantia, C-Bisexual flower done
clear
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question_answer27)
Common mode of reproduction in Penicillium is:
A)
Conidia done
clear
B)
Gemmule formation done
clear
C)
Buds done
clear
D)
Zoospore done
clear
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question_answer28)
For vegetative propagation, the vegetative part of the plant should have:
A)
A growing point done
clear
B)
Reserved food done
clear
C)
Leaf done
clear
D)
Both [a] and [b] done
clear
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question_answer29)
In a grafted plant, stock has 48 chromosomes while scion has 24 chromosomes. The chromosome number for root cells and eggs are:
A)
48 and 24 done
clear
B)
24 and 24 done
clear
C)
24 and 12 done
clear
D)
48 and 12 done
clear
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question_answer30)
Which is the most common method of reproduction in majority of fungi and bacteria?
A)
Binary fission done
clear
B)
Multiple fission done
clear
C)
Budding done
clear
D)
Spore formation done
clear
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question_answer31)
Which of the following definitions about oviparity is false?
A)
Only birds and reptiles are oviparous. done
clear
B)
The large amount of yolk provides the nutrients for the developing embryo. done
clear
C)
The shell protects the egg from dehydration. done
clear
D)
Both oxygen and carbon dioxide can diffuse through the shell. done
clear
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question_answer32)
During spermatogenesis, a single male germ cell produces ___ sperm cell(s).
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
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question_answer33)
Ploidy of ovary, anther, egg, pollen, male gamete and zygote are respectively:
A)
2n, 2n, n, 2n, n, 2n done
clear
B)
2n, 2n, n, n, n, 2n done
clear
C)
2n, n, n, n, n, n done
clear
D)
2n, 2n, n, 2n, 2n, 2n done
clear
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question_answer34)
Oestrous cycle occurs in females of:
A)
Monkeys done
clear
B)
Cows done
clear
C)
Apes done
clear
D)
Humans done
clear
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question_answer35)
Which of the following statements regarding the given terms are correct?
A)
These all are incapable of giving rise to new individuals and formation of these structures does not involve two parents. done
clear
B)
These all are capable of giving rise to new individuals and formation of these structures does not involve two parents. done
clear
C)
These all are capable of giving rise to new individuals but formation of these structures involves two parents for reproduction. done
clear
D)
These are all incapable of giving rise to new individuals but formation of these structure involves two parents for reproduction done
clear
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question_answer36)
Match column-I with column- II and select the correct answer using the codes given below.
| column-I(Name of the organism) | | column- II(Chromosome number in meiocyte) (2n) |
A. | House fly | I. | 20 |
B. | Fruit fly | II. | 34 |
C. | Apple | III. | 8 |
D. | Maize | IV. | 12 |
A)
A-II; B-III; C-IV; D-I done
clear
B)
A-III; B-IV; C-II; D-I done
clear
C)
A-IV; B-III; C-I; D-II done
clear
D)
A-IV; B-III; C-II; D-I done
clear
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question_answer37)
The terms homothallic and monoecious are used to denote:
A)
Bisexual condition done
clear
B)
Unisexual condition done
clear
C)
Staminate flowers done
clear
D)
Pistillate flowers done
clear
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question_answer38)
If cotyledons are brought above the soil, the germination is:
A)
Hypogeal done
clear
B)
Epigeal done
clear
C)
Vivipary done
clear
D)
None of these done
clear
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question_answer39)
Some organisms are capable of asexual or sexual reproduction. Under favoura conditions, reproduction proceeds asexually. When conditions become more stressful eproduction switches to a sexual mode. Why?
A)
Sexual reproduction is simple and more rapid allowing larger numbers of off springs to be produced. done
clear
B)
Sexual reproduction requires two separate individuals, who can mutually provide nutrient support during stress. done
clear
C)
Sexual reproduction produces individuals with new combinations of recombined chromosomes increasing diversity. done
clear
D)
Asexual reproduction requires more energy. done
clear
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question_answer40)
Meiocytes is observed in all except:
A)
Human egg done
clear
B)
Blue-green algae done
clear
C)
Equisetum done
clear
D)
Dicot plant done
clear
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question_answer41)
In the given figure of water hyacinth, a structure is marked as "X". This structure is involved in vegetative propagation as a unit of vegetative propagules. Identify the type of unit.
A)
Tuber done
clear
B)
Offsets done
clear
C)
Sucker done
clear
D)
Rhizome done
clear
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question_answer42)
Match column-I with column-II and select the correct answer using the codes given below.
| Column-I | | Column-II |
A. | Sponge | I. | Tuber |
B. | Yeast | II. | Offset |
C. | Potato | III. | Gemmules |
D. | Water hyacinth | IV. | Budding |
A)
A-IV; B-I; C-II; D-III done
clear
B)
A-III; B-I; C-IV; D-II done
clear
C)
A-III; B-IV; C-I; D-II done
clear
D)
A-III; B-IV; C-II; D-I done
clear
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question_answer43)
Which of the following statements are correct?
(i) Euglena divides by longitudinal binary fission (ii) Cytokinesis takes place along transverse axis in Paramoecium. |
(iii) Amoeba divides by irregular binary fission. |
(iv) In multiple fission, parental body divides into many daughter cells under favourable conditions. |
A)
(i) and (iv) done
clear
B)
Only (iv) done
clear
C)
(i), (ii) and (iii) done
clear
D)
(ii) and (iv) done
clear
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question_answer44)
Which of the following statements regarding the asexual reproduction is incorrect?
A)
Both mitotic and meiotic division occurs. done
clear
B)
It does not contribute to evolution and speciation. done
clear
C)
It is uniparental and usually occurs in unicellular organisms. done
clear
D)
There is no variation and the off springs have the same phenotype and genotype. done
clear
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question_answer45)
Offsprings of oviparous animals are at greater risk as compared to off springs of viviparous animals because:
A)
Proper embryonic care and protection is lesser. done
clear
B)
Embryo is not developed. done
clear
C)
Progenies are with more variation. done
clear
D)
Progenies are larger. done
clear
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question_answer46)
Agamospermous embryo sac develops from:
A)
Pollen done
clear
B)
Egg done
clear
C)
Ovum done
clear
D)
Megaspore mother cell done
clear
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question_answer47)
Offspring formed by sexual reproduction exhibits more variation than those formed by asexual reproduction because:
A)
Sexual reproduction is a lengthy process. done
clear
B)
Genetic material comes from two parents of different species. done
clear
C)
Genetic material comes from two parents of same species done
clear
D)
Greater amount of DNA is involved in sexual reproduction. done
clear
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question_answer48)
Which of the labelled parts (1 and 2) in the transverse section of pea plant is/are diploid?
A)
1 done
clear
B)
2 done
clear
C)
Both [a] and [b] done
clear
D)
None of these done
clear
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question_answer49)
Select the incorrect statements.
A)
Cucurbits and coconuts are monoecious plants. done
clear
B)
Papayas and date palms are dioecious plants. done
clear
C)
Leeches and tapeworms are bisexual animals. done
clear
D)
Sponges and coelenterates are unisexual animals. done
clear
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question_answer50)
Which of the following statements about animals that utilise external fertilisation is incorrect?
A)
They are divided equally between terrestrial and aquatic species. done
clear
B)
Many produce large numbers of gametes to ensure successful reproduction. done
clear
C)
The behaviours associated with mating are often highly synchronised. done
clear
D)
The probability of any one egg being fertilized and developing into an adult can be low. done
clear
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question_answer51)
The given figures P (plant Chard) and Q (Earthworm) have label 1, 2, 3 and 4 as their reproductive organs. Select the option which correctly identifies male reproductive organs of the two organisms.
A)
1 and 2 done
clear
B)
2 and 3 done
clear
C)
1 and 3 done
clear
D)
2 and 4 done
clear
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question_answer52)
Match column-I with column- II and select the correct answer using the codes given below.
| Column-I | | Column-II |
A. | Gamete | I. | Result of fusion of male and female gametes. |
B. | Budding | II. | Division of body into two equal halves. |
C. | Fission | III. | Germ cells. |
D. | Fertilisation | IV. | The fusion of male and female gametes. |
E. | Zygote | V. | An unequal division of organisms in which individual arises as an outgrowth from the parent. |
A)
A-I; B-II; C-III; D-IV; E-V done
clear
B)
A-III; B-V; C-II; D-IV; E-I done
clear
C)
A-III; B-I; C-V; D-II; E-IV done
clear
D)
A-V; B-IV; C-III; D-I; E-II done
clear
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