A typical angiospermic embryo sac is usually:
1.One-celled
2. Two-celled
3. Five-celled
4.seven-celled
After fertilization ovule develops into:
1. Integument
2. Seed
3.Embryo
4. Endosperm
All of the following structures are found in angiosperms except ?
1.Archegonium
2.Pistil
3.Anther
4.Megagametophyte
An example of rhizome is
1.Garlic
2.Colocassia
3.Ginger
4.Onion
An orthrotropous ovule is one in which micropyle and chalaza are :
1. Oblique to funiculus
2. At right angles to funiculus
3. In straight line with funiculus
4.Parallel to funiculus
Anemophily takes place by:
1.By Bird
2.By Bat
3.By Snail
4. By Wind
Asexual reproduction in Penicillium fungus usually takes place through?
1. Budding
2.Fission
3. Conidia
4.Gemmules
Budding is the example of :
1.Vegetative reproduction
2.Tissue culture
3.Sexual production
4.Dispersal
Closed flower:
1. Decliny
2. Cteistogamy
3.Dichogamy
4. None of these
Commonly in a mature fertilized ovule n, 2n, 3n conditions are respectively found in :
1. Endosperm, nucellus and egg
2. Egg. antipodals and endosperm
3.Integuments, synergids and egg
4.Egg, nucellus and endosperm
Demerit of self pollinatlon is:
1.Unisexua
2. Dichoganty
3. Hetorostyle
4.None of these
Development of fruit without fertilizations is:
1. Parthenogenesis
2.Heterostyly
3.Parthenocarpy
4.Agamospermy
Double fertilization in angiosperms was discovered by:
1. Strassburger
2. J. C. Bose
3.Maheshwari
4.Nawaschin
Double fertilization means:
1.Fusion of two eggs
2. Fusion of egg and pollen nuder of two pollen grains
3. Fusion of two polar nuclei with one male gamete
4. Fusion between synergid cells and male gamete
Earthworm is:
1.Unisexual
2. Bisexual
3.Asexual
4. Neutral
Entemophily take place by
1.By Bird
2.By Bat
3.By Wind
4. By Insect
Fatheroflndian Angiosperm Embnology is:
1. B. M. John
2.B. G L. Swami
3.R.N. Kapil
4. P. Maheshwari
Haploid plants develop by pollen are called ……..
1.Emasculation
2. Parthenocarpy
3.androgenesis
4. somatic hybridization
How many meiotic divisions are necessary to produce 100 pollen grains ?
1. 100
2.50
3.25
4.20
If cotyledons are brought above the soil the germination is:
1.Hypogeal
2.Epigeal
3.Vivipaiy
4. None of these
In an ovule meiotic takes place in:
1.Nucellus
2. Megaspore mother cell
3.Megaspore
4. Archesporium
In Capsella the endosperm in generally:
1.Haploid
2. Diploid
3. Triploid
4.Tetraploid
In higher plants, fertilization is :
1.External
2. Internal
3. In water
4. In air
In higher plants, meiosis occurs?
1.During formation of gametes
2.During fertilization
3.During embryogenesis
4. In seeds
In Monocots, grafting is almost impossible because they lack :
1.Cambium
2. Ground tissue
3. Vascular bundle
4. Parenchymatous cells
In potato, which structure takes part in vegetative reproduction?
1.Adventitious root
2.Apex bud of stem
3.Germinating eye bud
4.Arial shoot
Normal Embryosac of Angiosperm is :
1.Unicellular
2. Bicelled
3.Penta celled
4.Seven called
Parthenogenesis is common in :
1. Grape
2.Mango
3. Citrus
4.Litchi
Pollination by Bat is called :
1.Omithorphily
2.Entemophily
3.Cheropterophily
4.Hydrophily
Pollination by bats is called:
1.omithophily
2. Entromophily
3.Cheiropterophily
4. Hydrophily
Pollination by snails is called:
1.Malecophily
2. Zoophily
3. Anemophily
4. Hydrophily
Pollination in Lotus is:
1.By water
2.By wind
3.By insect
4. All of these
Polymbryony occurs in:
1.Maize
2. Citrus
3.Corchorus
4.Carthamus
The example of bulb is:
1. Ginger
2.Doob grass
3.Onion
4. Potato
The organism similar to parent can be obtained by:
1.Speed
2. Zygote
3. Gametes
4. Binary fission
The reproduction takes place by gemma :
1. In higher plants
2.In lower animals
3. In some bryophytes
4. In mammals
The term scion is used in relation to :
1.Embryology
2. Sexual reproduction
3. Pollen
4.Grafting
Totipotency is
1.Development of a fruit from a flower in a medium
2.Development of an organ from a cell in a medium
3.Development of tissues of all kinds from a cell in a medium
4.Development of tissues of all kinds from a cell in a medium
Vegelative reproduction takes place in Bryophyllum :
1.By buds
2.By leaves
3.By seeds
4.By roots
Vegetative reproduction takes place in Agave:
1.By bulbils
2.By hybrid
3.By stolon
4. By rhizome
Vegetative reproduction takes place in Bacteria :
1.By binary fission
2. By hybridization
3.By fiission
4.By fission
What is hexapioid (on), in which total number, of chromosomes are 42. then number of chromosomes in its any gamete:
1. 14
2.28
3.42
4. 7
When more than one embryoper embryosac is found. It is called:
1. Embryogeny
2.Amphimisis
3.Agamospormy
4.Polyembryoni
When pollen tube enter into the nucellus through micropyle is called:
1. Porogamy
2.Xenogamy
3.Mesogamy
4. Dikogamy
When the gametes of two different strains fuse each other, then this process of reproduction is :
1.Sexual reproduction
2.Asexual, reproduction
3.Vegetative reproduction
4.None of these
Which of the following is viviparous?
1.Cockroach
2.Scorpion
3. Bee
4. Butterfly
Which structure is not found in Angiosperm?
1.Archegonium
2. Carpel
3.Anther
4.Magagametophyte
Which structure takes part in gametogenesis :
1. Male gamete
2.Female gamete
3.Both (a) and (b)
4.Male or female gamete
Who discovered fertilization?
1. Nawaschin
2.Strassburger
3.Leeuwen Hock
4. Robert Hook
Who proved that the cells are totipotent?
1. White
2. Skoog
3. Miller
4. Steward