Description : why sterile tissues degenerate in anther during the maturation of pollen grain -Biology
Last Answer : answer:
Description : Role of tapetum in the formation pollen-grain wall? -Biology
Description : Pollen grain of hibiscus? -Biology
Description : Explain the structure of pollen grain? -Biology
Description : What Differ between cheek cells and pollen grain?
Last Answer : Need answer
Description : Haploid cells belong to: (a) Integument, pollen grain, endosperm (b) Embryo, endosperm and pollen grain (c) Megaspore, pollen grain, antipodal (d) Integument, pollen grain and antipodal
Last Answer : Ans. ((c))
Description : The study of pollen grain is known as : (a) Palaeobotany (b) Palynology (c) Pomology (d) Phonology
Last Answer : Ans:(b)
Description : Male gametophyte of angiosperms is shed at (a) four celled pollen grain (b) three celled pollen grain (c) microspore mother cell (d) anther.
Last Answer : b) three celled pollen grain
Description : Point out the odd one. (a) Nucellus (b) Embryo sac (c) Micropyle (d) Pollen grain
Last Answer : (d) Pollen grain
Description : Which one of the following is surrounded by a callose wall? (a) Male gamete (b) Egg (c) Pollen grain (d) Microspore mother cell
Last Answer : (d) Microspore mother cell
Description : The plant parts which consist of two generations- one within the other (1) pollen grains inside the anther (2) germinated pollen grain with two male gametes (3) seed inside the fruit (4) embryo sac inside the ovule (a) (1) only (b) (1), (2), and (3) (c) (3) and (4)
Last Answer : (d) (1) and (4).
Description : n Pinus/gymnosperms, the haploid structure are (a) megaspore, endosperm and embryo (b) megaspore, pollen grain and endosperm (c) megaspore, integument and root (d) pollen grain, leaf and root.
Last Answer : (b) megaspore, pollen grain and endosperm
Description : .In Pinus, the pollen grain has 6 chromosomes then in its endosperm will have (a) 12 (b) 18 (c) 6 (d) 24.
Last Answer : (c) 6
Description : In gymnosperms, the pollen chamber represents (a) a cavity in the ovule in which pollen grains are stored after pollination (b) an opening in the megagametophyte through which the pollen tube approaches the ... pollen grains develop (d) a cell in the pollen grain in which the sperms are formed.
Last Answer : (c) the microsporangium in which pollen grains develop
Description : 12. ------------ is the composition of the intine of the pollen grain (a) cellulose and kitin (b) kitin and polysaccharide (c) cellulose and pectin (d) polysaccharide and glycoprotein
Last Answer : (c) cellulose and pectin
Description : Name two cells of a mature pollen grain?
Last Answer : Ans: Vegetative cell and Generative cell
Description : Exine layer of pollen grain is made up of : a) sporopollenin b)Pectin c) cellulose d)chitin
Last Answer : Ans: a)sporopollenin
Description : In a cell haploid chromosome number is 15. What number is found in Pollen grain, Zygote, Primary endosperm nucleus and Colchicine treated zygote.
Last Answer : Ans: 15 in pollen grain, 30 in zygote, 45 in Primary Endosperm nucleus and 60 in colchicine treated zygote.
Description : Study of pollen grain is called- (a) Pomology (b) Palynology (c) Phocology (d) Mycology
Last Answer : (b) Palynology
Description : The part of the flower that can carry out photosynthesis is – (1) Androecium (2) Gynoecium (3) Calyx (4) Corolla
Last Answer : (3) Calyx Explanation: A flower has calyx, corolla, androecium and gynoecium. Calms and corolla are accessory organs, while androecium and gynoecium are reproductive organs. Photosynthetic ... of these tissues have significant roles in CO2 scavenging and the provision of carbon assimilates.
Description : The part of the flower that can carry out photosynthesis is (1) Androecium (2) Gynoecium (3) Calyx (4) Corolla
Last Answer : Calyx
Description : Explain the gynoecium of custard apple. -Biology
Description : How many locules will be present in an ovary of monocarpellary gynoecium? -Biology
Last Answer : In angiosperms (flowering plants), the term locule usually refers to a chamber within an ovary (gynoecium or carpel) of the flower and fruits. ... The locules contain the ovules or seeds.
Description : Which parts of the gynoecium develop into fruit and seeds. -Biology
Last Answer : Ovary develops into fruit; ovules develop into seeds.
Description : $ An incomplete flower has all the four whorls. ! Polycarpellary apocarpous gynoecium means that there are many fused carpels.
Last Answer : $ An incomplete flower has all the four whorls. ! Polycarpellary apocarpous gynoecium means that there are many ... D. If both As and R are wrong.
Description : The type of fruit obtained from a multicarpillary, apocarpous gynoecium is: (1) composite (2) aggregate (3) simple (4) multiple
Last Answer : (2) aggregate Explanation: Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of ... , each capable of giving rise to one fruit. Berries are good example of such fruits.
Description : The stamens are the male organs of flower which are also called a. Pistil b. Gynoecium c. Androecium d. Carpel
Last Answer : Androecium
Description : Bicarpellary gynoecium and oblique ovary occurs in (a) mustard (b) banana (c) Pisum (d) brinjal
Last Answer : (d) brinjal.
Description : Tricarpellary, syncarpous gynoecium is found in flowers of (a) Fabaceae (b) Poaceae (c) Liliaceae (d) Solanaceae
Last Answer : (b) Poaceae
Description : An aggregate fruit is one which develops from (a) multicarpellary syncarpous gynoecium (b) multicarpellary apocarpus gynoecium (c) complete inflorescence (d) multicarpellary superior ovary
Last Answer : (b) multicarpellary apocarpus gynoecium
Description : The gynoecium consists of many free pistils in flowers of (a) Aloe (b) tomato (c) Papaver (d) Michelia.
Last Answer : (d) Michelia.
Description : The term ‘polyadelphous’ is related to (a) gynoecium (b) androecium (c) corolla (d) calyx.
Last Answer : (b) androecium
Description : 68. The gynoecium consists of many free pistils in flowers of (1) Michelia (2) Aloe (3) Tomato (4) Papaver
Last Answer : Michelia
Description : Write the characters of Gynoecium in Solanaceae.
Last Answer : Ans: Gynoecium has bicarpellary syncarpous bilocular (Solanum) or Unilocular (Capsicum) or tetralocular (Datura) ovary with ovule on swollen placental axis on axile placentation. Style is terminal and stigma capitate.
Last Answer : aggregate
Description : Consider the following statement and select the correct code stating the nature of the argument involved in it: To suppose that the earth is the only populated world in the infinite space is as absurd ... only one grain will grow. (A) Astronomical (B) Anthropological (C) Deductive (D) Analogical
Last Answer : (D) Analogical
Description : Select the FALSE statement: A)Primary data are observed and recorded directly from respondents B)An example of secondary data is a syndicated report on consumer purchasing C)The nature and ... data- gathering approach to use D)Secondary data are not readily available to most organisations
Last Answer : D)Secondary data are not readily available to most organisations
Description : Which part of the ear determines the pitch of a sound? -Biology
Description : I have a good friend who is interested in giving 'us' a shot and would like to date. She has showed me/told me how she feels, but, the romantic feelings have not been reciprocated on my part...yet. We're compatible in so many ways. Should I give it a chance?
Last Answer : Go for it! You only live once ;)
Description : Which flower part is sticky or feathery so it can capture pollen?
Last Answer : D. pistil
Description : The floral part that receives pollen grains during pollination is - (1 ovary (2) style (3) stigma (4) ovules
Last Answer : (3) stigma Explanation: The stigma is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. The stigma receives pollen at pollination and it is on the stigma that the pollen grain germinates. The style connects the stigma to the ovary.
Description : The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary
Last Answer : (3) Anther Explanation: The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Description : The floral part that produces pollen grains is - (1 ) Sepal (2) Petal (3) Anther (4) Ovary
Last Answer : (3) Anther Explanation: Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Description : What part of the flower contains the pollen? a) Anther b) Stigma c) Leaves d) Stem
Last Answer : a) Anther
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 : The part of the flower that is adapted to catch pollen is the: a) stigma b) style c) anther d) ovule
Last Answer : ANSWER: A -- STIGMA
Description : In flowers the terminal part of a stamen, containing the pollen sacs is known as the: a) anther b) style c) filament d) pistil
Last Answer : ANSWER: A -- Anther