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

campylotropous

hemitropous

orthotropous

anatropous

Question 1 of 30

2. The endosperm of gymnosperms is?

polyploid

diploid

triploid

haploid

Question 2 of 30

3. 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

The seeds exhibit long dormancy

It adversely affects the fertility of the plant

Question 3 of 30

4. Eight nucleate embryo sacs are?

always tetrasporic

always bisporic

sometimes monosporic sometimes bisporic and sometimes tetrasporic

always monosporic

Question 4 of 30

5. Parthenocarpic tomato fruits can be produced by?

raising the plants from vernalized seeds

removing androecium of flowers before pollen grains are released

treating the plants with phenylmercuric acetate

treating the plants with low concentrations of gibberellic acid and auxins

Question 5 of 30

6. Pine apple fruit develops from?

a multilocular monocarpellary flower

a multipistillate syncarpous flower

a cluster of compactly borne flowers on a common axis

a unilocular polycarpellary flower

Question 6 of 30

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

Degenerated synergid

Central cell

Egg cell

Persistent synergid

Question 7 of 30

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

Commensalism

Cooperation

Mutualism

Co-evolution

Question 8 of 30

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

egg cell

antipodal cell

synergid

central cell

Question 9 of 30

10. 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?

Atropous

Circinotropous

Amphitropous

Anatropous

Question 10 of 30

11. In oogamy fertilization involves?

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

Question 11 of 30

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

triploid

pentaploid

tetraploid

haploid

Question 12 of 30

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

Axile

Free central

Marginal

Basal

Question 13 of 30

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

antibiotics

bio fertilizer

mutation

tissue culture

Question 14 of 30

15. Anemophily type of pollination is found in?

Salvia

bottle brush

coconut

Vallisneria

Question 15 of 30

16. 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 16 of 30

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

Right

Upward

Downward

Left

Question 17 of 30

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

Question 18 of 30

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

embryo

fruit wall

endosperm

seed coat

Question 19 of 30

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

Agave and Kalanchoe

Chrysanthemum and Agave

Bryophyllum and Kalanchoe

Asparagus and Bryophyllum

Question 20 of 30

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

long styles of carpels

hair of seeds

anthers

hairy projections from the bracts

Question 21 of 30

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

synergids or antipodals in an embryo sac

zygote

accessory embryo sac in the ovule

nucellus ore integuments

Question 22 of 30

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

coleoptile

scutellum

prophyll

coleorhiza

Question 23 of 30

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

cycads

polypetalous angiosperms

gamopetalous angiosperms

conifers

Question 24 of 30

25. 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 25 of 30

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

callose

pectocellulose

cellulose

propellent

Question 26 of 30

27. In a flowering plant archesporium gives rise to?

wall and the tapetum

only tapetum and sporogenous cells

only the wall of the sporangium

both wall and the sporogenous cells

Question 27 of 30

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

3+2+3

2+3+3

2+4+2

3+3+2

Question 28 of 30

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

fusion of one polar nucleus and the second male gamete only

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

all of the above kinds of fusion in different angiosperms

fusion of two polar nuclei and the second male gamete

Question 29 of 30

30. Adventive embryony in Citrus is due to?

zygotic embryo

integuments

nucellus

fertilized egg

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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