Description : Pentamerous actinomorphic flowers, bicarpellary ovary with oblique septa, and fruit capsule or berry, are characteristic features of (a) Liliaceae (b) Asteraceae (c) Brassicaceae (d) Solanaceae.
Last Answer : (d) Solanaceae.
Description : Monoecious plants have male and female sexes/flowers on a. Same plant b. Different plants c. Both of these d. None of these
Last Answer : Same plant
Description : When one plant has both male and female flowers separately, is called— (A) Monophrodits (B) Monoecious (C) Hermaphrodite (D) Apomixis
Last Answer : (B) Monoecious
Description : .Consider the following four statements whether they are correct or wrong. A. The sporophyte in liverworts is more elaborate than that in mosses. B. Salvinia is heterosporous. C. The life-cycle in all seed-bearing plants is diplontic ... are (a) A and C (b) A and D (c) B and C (d) A and B
Last Answer : (b) A and D
Description : Swollen placenta, oblique septum and conniving anthers are characteristics of family: (a) Brassicaceae (b) Asterácéae (c) Poaceae (d) Solatiaceae
Last Answer : Ans. ((d))
Description : When male and female flowers occur on different plants
Last Answer : Ans. Diocious
Description : When male and female flowers occur on the same plant
Last Answer : Ans. Monocius
Description : plzz help me to get out of confusion regarding Unisexuality of flowers prevents -Biology
Last Answer : answer:
Description : Unisexuality of flowers prevents (a) geitonogamy, but not xenogamy (b) autogamy and geitonogamy (c) autogamy, but not geitonogamy (d) both geitonogamy and xenogamy
Last Answer : (c) autogamy, but not geitonogamy
Description : The fused bracts in the male flowers of Gnetum are comparable to ....... a) leaves of angiosperms b) bracteoles of angiosperms c) bracts of angiosperms d) perianth of angiosperms
Last Answer : b) bracteoles of angiosperms
Description : Name the special inflorescence which has a single flower and many male flowers. What are its cymose characters?
Last Answer : Ans: The inflorescence is Cyathium. The male flowers are arranged in scorpioid cymes.
Description : The abortive female flower in the male cone of Gnetum can be distinguished from the normal ovules of the female cone apart from its function by the presence of …. a) no envelops b) single envelope c) two envelopes d) several envelops.
Last Answer : b) single envelope
Description : Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria
Description : Which hormone is found in fruits, flowers, seeds, leaves and roots ?
Last Answer : Ethylene hormone is found in fruits, flowers, seeds, leaves and roots.
Description : Cliestogamous flowers are found in
Last Answer : Cliestogamous flowers are found in – Commelina
Description : What are gall flowers? In which inflorescence are they found.
Last Answer : Ans: Gall flowers are sterile female flowers. They are found Cyathium inflorescence.
Description : Air pollution effects are usually found on a) Flowers b) Leaves c) Stems d) Roots.
Last Answer : b) Leaves
Description : Consider the following statements: (1) Cutin is a fatty acid polymer (2) Starch is a fatty acid polymer (3) Sucrose is monosaccharide (4) Maltose is polymer of fructose
Last Answer : Ans. ((b))
Description : Consider the following statements: (1) The seed of pea is exalbuminous (2) The fruit of peach is drupe (3) The seed of tomato is albuminous (4) The fruit of coconut is berry
Description : Consider the following statements associated with the germination of an angiospermous seed: (1) As the seed gets hydrated and germinates, enzymatic activity is increased (2) The respiration ... The increase in the respiratory rate continues till senescence (4) Rate of enzymatic activity decreases
Description : Consider the following statements: Marchantia polymorpha (1) Is dioecious (2) Possesses antheridiophores and archegoniophores (3) Lacks foot and seta in its sporophyte (4) Is heterosporous
Description : Consider the following statements: (1) Copper is present in cytochrome oxidane (2) Pantothenic acid is precursor of co-enzyme-A (3) Thiamine prohosphate is the prosthetic group in decarboxylases (4) Zinc is present in RNA and DNA polymerases
Description : which flowers do you remove from the zucchini plants & how can you tell which is male/female
Last Answer : We don't remove any.............we let them all bloom...........
Description : The plants with male and female flowers on different plants are called (A)Dicot (B) Dichogamy (C) Dicliny (D) Dioecious
Last Answer : (D) Dioecious
Description : Different mango varieties can be distinguished on the basis of: a. New leaf colour b. Panicle length c. Number of male flowers d. All of above
Last Answer : New leaf colour
Description : Lower temperature than normal convert male flowers into perfect flowers in ________: a. Date palm b. Mango c. Papaya d. Citrus
Last Answer : Papaya
Description : Which of the following should be used to prevent premature falling of fruits from mango tree ?
Last Answer : Auxin should be used to prevent premature dropping of fruits from mango trees.
Description : Which one is responsible for falling mango ?
Last Answer : Ethylene is responsible for mango drop.
Description : Which dull fruit ? A. Mango b. Banana c. Jam d. Beans
Last Answer : Beans are dull fruits. When the beans are ripe, the skin becomes dry and cracked. That is why these fruits are called dull fruits.
Description : Why is mango ripe ?
Last Answer : A gaseous substance called ethylene is emitted from the bark of mango tree. As a result, mango ripens.
Description : Grafting is employed for better and quicker yield of varieties of: (1) Apple (2) Mango (3) Citrus (4) Tea
Last Answer : Ans. ((a))
Description : Which plant produces flowers ?
Last Answer : Florigen produces flowers of plants.
Description : The pollination between two different flowers present on same plant is called as
Last Answer : The pollination between two different flowers present on same plant is called as – Geitonogamy
Description : In hybridization this is not part of the technique used a) Transfer pollen b) Collect pollen c) Emasculate d) Use of two plants to bridge the stems together
Last Answer : d) Use of two plants to bridge the stems together
Description : $ Funaria plant is monoecious. ! Monoecious plants are those which are always unisexual.
Last Answer : $ Funaria plant is monoecious. ! Monoecious plants are those which are always unisexual. A. If both As and ... wrong D. If both As and R are wrong.
Description : Consider the following statement: (1) In plant cells, cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus
Description : Rubber plant (ornamental) belongs to family: a. Oleacecae b. Moraceae c. Rosaceae d. Nyctaginaceae
Last Answer : Moraceae
Description : The biggest fruit plant containing family is: a. Rosaceae b. Citrea c. Leguminoseae d. Vitaceae
Last Answer : Rosaceae
Description : In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth
Last Answer : c) seed is naked
Description : Which of the following is not a characteristic of coniferales........ a)pycnoxylic wood b)motile male gametes c)presence of resin canal d) fertilization siphonogamous
Last Answer : b)motile male gametes
Description : In double fertilization, the two male nuclei fuse with
Last Answer : In double fertilization, the two male nuclei fuse with – Egg cell and Definitive nucleus
Description : Male gametophyte in angiosperms consists of
Last Answer : Male gametophyte in angiosperms consists of – Pollen grains, pollen tube, tube nucleus and two male nuclei.
Description : Why Flowers Are Needed ?
Last Answer : The outermost stem of a flower is called a circle. The stalk protects other parts of the flower especially from sun , rain and insects in the twenties. That is why swelling is required.
Description : Why colorful flowers are helpful for pollination ?
Last Answer : Insects or birds float around in the attraction of the beautiful color of colorful flowers. At this time the pollen sticks to the carrier. When this carrier sits on another flower of the ... the work of pollination is done without their knowledge. So colored flowers are conducive to pollination.
Description : Fragrant flowers with well developed nectarines are an adaptation for: (a) Zoophily (b) Anemophily (c) Entornophily (d) Hydfophily
Last Answer : Ans. ((c))
Description : Fragrant flowers with well developed nectarines are an adaptation for: (a) Anemophily (b) Ornithophily (c) Entamophily (d) Hydrophily
Description : what are flowers?
Last Answer : Flowers are beautiful structures that are composed of many parts. The flower forms in a bud, and emerges on a short stalk or stem. The end of this stem has four different parts: sepals, petals, ... As this fruit grows and matures, many other flower parts like petals and stamens wither and fall off.
Description : Bird pollinated flowers are rich in
Last Answer : Bird pollinated flowers are rich in – Nector
Description : Inconspicuous flowers, which produce enormous number of pollens are characteristic feature of
Last Answer : Inconspicuous flowers, which produce enormous number of pollens are characteristic feature of – Wind pollination.
Description : Flowers which never open are called as
Last Answer : Flowers which never open are called as – Cliestogamous flowers