CBSE Biology Reproduction in Flowering Plants and Plant Embryology Test 1 Online

Test Name	Reproduction in Flowering Plants and Plant Embryology Test
Subject	CBSE Biology
Test Type	MCQs
Total Question	30
Total Marks	60
Total Time	25 Minutes
Test Help For	CBSE Biology. CBSE Board Exams. Entrance Exams. Admissions Test. Jobs Test. General Knowledge. All Grades Exams.

Reproduction in flowering plants involves the production of male and female gametes, the transfer of male gametes to female eggs in a process called pollination. After pollination fertilization occurs and the eggs grow in seeds inside a fruit. The genesis of the plant embryo is the process that produces an embryo from the plant of an egg fertilized by asymmetric cell division and differentiation of undifferentiated cells into tissues and organs.

CBSE exams, assessment tests preparation for Biology chapter of Reproduction in Flowering Plants and Plant Embryology topic chapter complete questions and answers.

CBSE Biology Reproduction in Flowering Plants and Plant Embryology Test 1 Online

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1. Parthenocarpic tomato fruits can be produced by?

treating the plants with low concentrations of gibberellic acid and auxins

raising the plants from vernalized seeds

treating the plants with phenylmercuric acetate

removing androecium of flowers before pollen grains are released

Question 1 of 30

2. In oogamy fertilization involves?

a small non-motile female gamete and a large motile male gamete

a large non-motile female gamete and a small motile male gamete

a large non-motile female gamete and a small non motile male gamete

a large motile female gamete and a small non-motile gamete

Question 2 of 30

3. In which one pair both the plants can be vegetatively propagated by leaf pieces?

Chrysanthemum and Agave

Agave and Kalanchoe

Asparagus and Bryophyllum

Bryophyllum and Kalanchoe

Question 3 of 30

4. Adventive embryony in Citrus is due to?

nucellus

zygotic embryo

integuments

fertilized egg

Question 4 of 30

5. What is the direction of micropyle in anatropous ovule?

Downward

Right

Upward

Left

Question 5 of 30

6. In a cereal grain the single cotyledon of embryo is represented by?

coleorhiza

coleoptile

scutellum

prophyll

Question 6 of 30

7. Top shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons are characteristic features of?

gamopetalous angiosperms

polypetalous angiosperms

conifers

cycads

Question 7 of 30

8. Pine apple fruit develops from?

a multilocular monocarpellary flower

a cluster of compactly borne flowers on a common axis

a unilocular polycarpellary flower

a multipistillate syncarpous flower

Question 8 of 30

9. In angiosperms triple fusion is required for the formation of?

fruit wall

endosperm

seed coat

embryo

Question 9 of 30

10. Which type of association is found in between entomophilous flower pollinating agent?

Co-evolution

Commensalism

Cooperation

Mutualism

Question 10 of 30

11. What would be the number of chromosomes in the cells of the aleuron layer in a plant species with 8 chromosomes in its synergids?

Question 11 of 30

12. In angiosperms pollen tubes liberate their male gametes into the?

antipodal cell

egg cell

central cell

synergid

Question 12 of 30

13. Flowers showing ornithophily show few characteristic like?

bright red flower into thick inflorescence

red sweet scented flower with nectaries

blue flower with nectaries at base of corolla

white flower with fragrance

Question 13 of 30

14. The endosperm of gymnosperms is?

haploid

diploid

triploid

polyploid

Question 14 of 30

15. How many pollen grains will be formed after meiotic division in 10 micro spore mother cells?

Question 15 of 30

16. In a flowering plant archesporium gives rise to?

only the wall of the sporangium

both wall and the sporogenous cells

wall and the tapetum

only tapetum and sporogenous cells

Question 16 of 30

17. An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is?

campylotropous

orthotropous

anatropous

hemitropous

Question 17 of 30

18. In the young cob of maize numerous filamentous hair like structures protruding from its tip are?

hairy projections from the bracts

long styles of carpels

anthers

hair of seeds

Question 18 of 30

19. Double fertilization leading to initiation of endosperm in angiosperms require?

all of the above kinds of fusion in different angiosperms

fusion of two polar nuclei and the second male gamete

fusion of four or more polar nuclei and the second male gamete only

fusion of one polar nucleus and the second male gamete only

Question 19 of 30

20. In a type of apomixis known as adventive embryony embryos develop directly from the?

nucellus ore integuments

synergids or antipodals in an embryo sac

accessory embryo sac in the ovule

zygote

Question 20 of 30

21. Through which cell of the embryo sac does the pollen tube enter the embryo sac?

Egg cell

Central cell

Persistent synergid

Degenerated synergid

Question 21 of 30

22. Anemophily type of pollination is found in?

bottle brush

Vallisneria

coconut

Salvia

Question 22 of 30

23. What type of placentation is seen in sweet pea?

Free central

Axile

Basal

Marginal

Question 23 of 30

24. The arrangement of the nuclei in a normal embryo sac in the dicot plants is?

2+3+3

3+3+2

3+2+3

2+4+2

Question 24 of 30

25. Eight nucleate embryo sacs are?

always bisporic

sometimes monosporic sometimes bisporic and sometimes tetrasporic

always monosporic

always tetrasporic

Question 25 of 30

26. Which one of the following represents an ovule where the embryo sac becomes horse shoe-shaped and the funiculus and micropyle are close to each other?

Amphitropous

Anatropous

Circinotropous

Atropous

Question 26 of 30

27. Why is vivipary an undersirable character for annual crop plants?

It reduces the vigour of the plant

The seeds cannot be stored under normal conditions for the next season

It adversely affects the fertility of the plant

The seeds exhibit long dormancy

Question 27 of 30

28. If an angiospermic male plant is diploid and female plant tetraploid the ploidy level of endosperm will be?

triploid

tetraploid

pentaploid

haploid

Question 28 of 30

29. In angiosperms all the four microspores of tetrad are covered by a layer which is formed by?

cellulose

pectocellulose

callose

propellent

Question 29 of 30

30. Reproducing new plants by cells instead of seeds is known as?

tissue culture

mutation

bio fertilizer

antibiotics

Question 30 of 30

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2021-01-17

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CBSE Biology Reproduction in Flowering Plants and Plant Embryology Test 1 Online

CBSE Biology Reproduction in Flowering Plants and Plant Embryology Test 1 Online

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