Sexual Reproduction in Flowering Plants Questions

The stigma of anemophilous flower is :-

Find out incorrect statement.

How many of the following structures are present in embryo of monocot plants but not in embryo of dicot plants. Cotyledon, embryonal axis, coleoptile, radicle, plumule, endosperm, coleorhiza, seed coat, hypocotyl, epicotyl

Read the following statements carefully and select the correct option from options given below : (A) Polar nuclei are situated above the egg apparatus in embryo sac. (B) In process of triple fusion, one male gamete fuses with one diploid female gamet

Which of the following statements are correct for a typical female gametophyte of a flowering plant? i) It is 8-nucleate and 7-celled at maturity ii) It must undergo meiosis iii) It is situated inside the integument but outside the nucellus iv) It ha

Match the following:

Assertion: Cleistogamous flowers are invariably autogamous. Reason: These flowers do not open.

Identify the endosperm in the given figure:

A ovule generally has ............(i)............. embryo sac formed from a .........(ii)........... through ..........(iii)........ divisions -

Identify 1 to 4 in the following diagram :

Refer the given characteristics of some flowers : I. Light and non-sticky pollen grains. II. Exserted stigmas and anthers. III. Large, often feathery stigmas. IV. Flowers colourless, odourless and nectarless. Above features are the characteristics of

"In Western countries a large number of ______ product in the form of tablets and ______ are available in market. Pollen consumption claimed to increase the ______ of athlete." The words to fill blanks in sequential order are :

Arrange the following events in correct chronological sequence of occurrence in a typical flowering plant. A. Formation of the female gametophyte B. Fruit formation C. Degradation of antipodals D. Transfer of pollen to stigmaE. Triple fusion Choose t

Correct sequence of triple fusion:

Insect pollinated except:

Embryo sac:

Assertion: Flowers are marvels Reason: Site of asexual reproduction

Major pollination in angiosperms:

Water pollinated except:

Device NOT preventing selfing:

Egg apparatus consists of:

Pollen shed at 2-celled stage:

Sugar conc. for pollen germination:

Monoecious prevents:

Basal part of ovule:

Assertion: Pollen causes allergy Reason: Parthenium via rice

Fusion of male gamete with egg:

Exine apertures:

Ovules NOT one in:

Identify A, B, C (pistil diagram):

Correct statement:

Chalazal cells:

MMC produces:

Pollen-pistil interaction refers to:

In corn cob, stigma traps:

Cells with dense cytoplasm & more nuclei:

Chalazal cells:

Megaspore mother cell produces:

Pollen-pistil interaction includes:

Tapetum cells:

Yucca pollinated by:

Ovules are:

Embryo sac from one megaspore:

Viola, Oxalis, Commelina show:

Junction between ovule & funicle:

Central cell after triple fusion becomes:

Assertion: Cleistogamous flowers are autogamous Reason: No cross pollen landing

Central cell has:

Synergids have:

Wall layers helping dehiscence: