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What is ploidy of nucellus,MMC,functional megaspore,female gametophyte?plz explain how?
endosperm development precedes embryo development. why?
judwa bacche kaise hote hai
list at least five flowers of ornamental value that are commonly cultivated at homes and garden.
What are microsporogenesis and megasporogenesis?
WHAT IS THE FUNCTION OF GERM PORE
what are pollen or nectar robbers?
eg of chasmogamous and cleistogamous flowers
what is the ploidy of nucellus , megaspore mother cell , the functional megaspore and female gametophyte ?
name 5 flowers that are used in social and cultural celebrations
how do tapetal cells become binucleate/multinucleate?
What would be the ploidy of the cells of tetrad?
What is the importance of apomixis and polyembryony? At least 4-5 points.....
why is aceto carmine used while performing mitosis experiment?
Theca are separated by a longitudinal groove running lengthwise. explain please
Can you think of how tapetal cells could become bi-nucleate?
is endosperm persistent in wheat,rice and maize?
what is polygonum type of embryo sac?? plzz xplain in details..
give the technical term for the types of pollination which ensures genetic recombination ?
what techinal term is given to the single cotyledon in the plants of grass family ?
how is pollination affected in zostera ?
Can you please explain the outbreeding devices of pollination?
why the exine should be hard and what is the function of germ pore?
name the cell that develops into embryo sac and explain how this cell leads to the formation of embryo sac
What is emasculation ? When and Why plant breeders employ this technique ?
how could the tapetal cells become bi-nucleate?
explain the meaning of line..
since reproductive processes such as pollination and fertilization are independent of water seed formation is more dependable..
what would be the genetic nature of apomictic embryos?can they be called clones?
2. Embryo sac is to ovule as _______ is to an anther.a. Stamenb. Filamentc. Pollen graind. Androecium
describe the stages in embryo development in dicot plant
Q- In the embryos of a typical dicot and a grass, true homologous structuresare:a. Coleorhiza and coleoptileb. Coleoptile and scutellumc. Cotyledons and scutellumd. Hypocotyl and radicle
Why do you think the exine should be hard? What is the function of germ pore?
Why do the integuments of an ovule harden and the water content highly reduced as the seed matures?
What is apomixis? How is it different from polyembryony?
example for anatropous ovule and atropous ovule
how are cucurbita plants different from papaya plants with reference to the position of the flower they bear
Describe the characters of Anemophilous and Entomophilous flowers. (atleast 3 characters each with example.)
1.How many pollen grains will be produced in a flower of mustard plant having 10 microspore mother cells in each microsporangium? (PLEASE EXPLAIN)
(a) 240 (b) 960 (c) 1920 (c) 480
what is the function of filiform apparatus?
WHAT IS THE PLOIDY LEVEL OF SYNERGIDS , ANTIPODAL CELLS AND EGG CELLS ??
how many embryo sacs are present in an ovule?how many ovules are present in an ovary?how many ovaries are presnt in a typical flower?
is there is any relationship between number of ovule in the ovary and the number of seed present in the fruit??????????????
what is the function of germ pore?
what is the importance of the megaspore mother cell(MMC) undergoing meiosis?
Give 2 differences between perisperm and endosperm with examples.
what is the difference between microsporangia, microsporangium & megasporangia, megasporangium?
How it is possible in oxalis and viola plants to produce assured seed sets even in the absence of pollinators?
wht is microspore tetrad ?
Gametes are always haploid, though the parent body may be haploid or diploid. How is it achieved in both kinds of organisms?
what are synergids and antipodal cells how are connected to each other?
how do flowers reward their insect pollinators?
what is difference between microspore and pollen grain?
what is the function of pollen vegetative cell??
Explain the terms "tenuinucellate" and "crassinucellate" ?
difference between apomixis and polyembryony ?
What is the significance of double fertilisation?
what is sporopollenin??
May u plz tell...What are the examples of Geitonogamy and Xenogamy...???
is sporogenous tissue and pollen mother cell the same thing ?please also explain microsporogenisis... i am confused...
labelled diagram of microsporogenesis n macrosporogenesis.
is there a difference between pollen sac n microsporangia??
How many germ pores are present in the pollen grain of monocots and dicots?
how long pollen grains retain viability?
what is a meiocyte?
give an example of heterogamous female?
who first proposed the semi conservative nature of dna?
incompatibility is a natural barrier in the fusion of gametes .justify the statement.
why are most or should i say all anthers bilobed and dithecous ? what kind of importance this kind of structure offer ? is it to promote more number of pollen grains,better dehiscence technique or some other reasons ?
explain any two devices by which autogamy is preventd in flowering plants
give examples of complete,perfect,imperfect ,incomplete flower
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