Description : Which is the most common type of embryo sac in angiosperms ? (a) Tetrasporic with one mitotic stage of divisions (b) Monosporic with three sequential mitotic divisions (c) Monosporic with two sequential mitotic divisions (d) Bisporic with two sequential mitotic divisions
Last Answer : (b) Monosporic with three sequential mitotic divisions
Description : Eight nucleated embryo sac is (a) only monosporic (b) only bisporic (c) only tetrasporic (d) any of these.
Last Answer : (d) any of these.
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 : What is meant by monosporic development of female gametophyte?
Last Answer : Ans: The method of embryo sac formation from single megaspore is called monosporic development.
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 : Gnetum, when not in flowering can be easily mistaken for a .............. a) tree fern b) dicot plant c) monocot plant d) thalloid plant
Last Answer : b) dicot plant
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 : Cycadeoidea is also known as…. a)Lyginopteris b)Bennettites c) Pinus d)Gnetum
Last Answer : b)Bennettites
Description : Heterophilly of Limnophila is (a) Environmental (b) Developmental (c) Habitual (d) Adaptive
Last Answer : Ans. ((d))
Description : Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis
Last Answer : Ans. ((b))
Description : A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte
Last Answer : Ans. ((c))
Description : Development of saprophyte from gametophyte, is called (a) Apomixis (b) Apospory (c) Apogamy (d) Dip1ospory
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 : Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae
Description : In bryoph4tes the female sex organ is called: (a) Archegonium (b) Antheridium (c) Carpogonium (d) Ascogonium
Last Answer : Ans. ((a))
Description : Explain development of female gametophyte in a flowering plant. -Biology
Last Answer : answer:
Description : Which is the structure in which the female gametophyte develops? -Biology
Description : In pines the female gametophyte contains? -Biology
Description : Why is the embryo sac called the female gametophyte? -Biology
Description : $ Rhizoids of female gametophyte of selaginella are multicellular. ! Selaginella is homosporous.
Last Answer : $ Rhizoids of female gametophyte of selaginella are multicellular. ! Selaginella is homosporous. A. If both As ... D. If both As and R are wrong.
Description : Female gametophyte of angiosperms is represented by (a) ovule (b) megaspore mother cell (c) embryo sac (d) nucellus.
Last Answer : (c) embryo sac
Description : Read the following five statements (A - E) and answer as asked next to them. (A) In Equisetum, the female gametophyte is retained on the parent sporophyte. (B) In Ginkgo, male gametophyte is not independent. (C ... . How many of the above statements are correct? (a) Two (b) Three (c) Four (d) One
Last Answer : (d) One
Description : Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and ... are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.
Last Answer : (d) Origin of seed habit can be traced in pteridophytes.
Description : Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte ... by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.
Last Answer : (b) female gametophyte lacks archegonia
Description : Name the parts of angiospermic flowers in which development of male and female gametophyte takes place.
Last Answer : Ans: Anther and Ovary
Description : In angiosperm female gametophyte is: a) Embryo b) Egg Apparatus c)Embryo sac d) synergids
Last Answer : Ans: c)Embryo sac
Description : 85. Which one of the following is a correct statement ? (1) Origin of seed habit can be traced in pteridophytes (2) Pteridophyte gametophyte has a protonemal and leafy stage (3) In gymnosperms female gametophyte is free-living (4) Antheridiophores and archegoniophores are present in pteridophytes
Last Answer : Origin of seed habit can be traced in pteridophytes
Description : Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms. (a) Perianth and two integuments (b) Embryo development and ... of resin duct and leaf venation (d) Presence of vessel elements and absence of archegonia
Last Answer : (d) Presence of vessel elements and absence of archegonia
Description : Observe the given map. Which one of the following statement is NOT true about the shaded state indicated on the map? (1) Society predominantly follows right of female ultimogeniture (2) The state is ... a major producer of potatoes in India (4) Some parts of the state receive extremely high rainfal
Last Answer : (3) The state is a major producer of potatoes in India
Description : What type of developmental approach is cutting edge and at the forefront of research when working with genes associated with disorders such as schizophrenia?
Last Answer : Feel Free to Answer
Description : Which of the following anomalies occurs during the initiation and proliferation stages of tooth development A. Amelogenesis imperfecta (developmental defect) B. Dentinogenesis imperfecta (developmental defect) C. Enamel hypoplasia (AI type) D. Oligodontia E. Ankylosis
Last Answer : D. Oligodontia
Description : Explain ' Absorption is a type of diffusion ' ?
Last Answer : : Diffusion means the movement of a liquid molecule from a high-pressure place to a low-pressure place.
Description : During microsporogenesis, successive type of cell division is found in
Last Answer : During microsporogenesis, successive type of cell division is found in – Monocots
Description : The most primitive type of ovule is found in
Last Answer : The most primitive type of ovule is found in – Orthrotropus
Description : The most common type of embryosac in Angiosperms is
Last Answer : The most common type of embryosac in Angiosperms is – Polygonum type
Description : Successive type of microsporogenesis is found in
Last Answer : Successive type of microsporogenesis is found in – Monocots
Description : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as –
Last Answer : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as – Mesogenous development
Description : In Rubber (Haevea brasiliensis) the type of laticifers are
Last Answer : In Rubber (Haevea brasiliensis) the type of laticifers are – Articulated laticifer
Description : What is stipule? Which type of stipules are found in Ipomoea quamoclit?
Last Answer : Ans: Stipules are two small lateral appendages of leaf present on both sides of leaf base. Ipomoea quamoclit has branched stipules.
Description : What are hydrophytes? Which type of tissue is responsible for buoyancy in hydrophytes?
Last Answer : Ans: Plants that live in water or water rich soils are called as hydrophytes. The tissue that helps in buoyancy is Aerenchyma.
Description : Which is not applicable to vegetatively propagated plants a) To get true to type plants b) To protect an elite quality c) To conserve a plant d) To get a new type of plant
Last Answer : d) To get a new type of plant
Description : Female pattern baldness?
Last Answer : DefinitionFemale pattern baldness involves a typical pattern of hair loss in women, due to hormones, aging, and genes.Alternative NamesAlopecia in women; Baldness - female; Hair loss in women; ... to:AgingChanges in the levels of androgens (male hormones). For example, after reaching meno
Description : An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female species and tries ... phenomenon is called (a) pseudopollination (b) pseudoparthenocarpy (c) mimicry (d) pseudocopulation.
Last Answer : (d) pseudocopulation.
Description : What are fun developmental milestones for almost-1st graders?
Last Answer : Likeradar i’m opposed to showering alone, even at 29. ;)~ Blow bubbles and bubble gum i was doing by that age, as well as tying shoelaces. the two-wheeler came at around 7 for me. i could iron clothes by the time i was seven, though, too. so, it’s different for everyone. (i’m not kidding)
Description : what are the 11 developmental tasks for adolescents?
Last Answer : answer:I am not sure about all eleven, nut I believe that some include: 1. Seeking freedom from parental figures 2. Establishment of personal identity 3. Handling of sexual energies 4. Remodeling of ... of self and others Do you have any more information as to what exactly you are looking for?
Description : Mention any two developmental goals of a landless rural labourer. -SST 10th
Last Answer : (i) More days of work and better wages. (ii) Quality education for his children.
Description : Mention any two developmental goals of a girl. -SST 10th
Last Answer : (i) Gender equality (ii) Girls empowerment
Description : Mention any two developmental goals of people other than income. -SST 10th
Last Answer : (i) Equal treatment (ii) Respect of others
Description : Mention any two developmental goals of a rural women. -SST 10th
Last Answer : (i) Dignity in the household. (ii) A safe and secure environment.
Description : Think of any three developmental goals of a boy from a rich urban family. -SST 10th
Last Answer : (i) He may think to get quality education and persue his studies abroad. (ii) He may require the availability of vocational education and training. (iii) He may require capital to start his own business.