A typical angiospermic embryo sac is usually:
1.One-celled
2. Two-celled
3. Five-celled
4.seven-celled
Posted Date:-2022-09-21 09:17:38
After fertilization ovule develops into:
1. Integument
2. Seed
3.Embryo
4. Endosperm
Posted Date:-2022-09-21 09:09:32
All of the following structures are found in angiosperms except ?
1.Archegonium
2.Pistil
3.Anther
4.Megagametophyte
Posted Date:-2022-09-21 09:15:29
An example of rhizome is
1.Garlic
2.Colocassia
3.Ginger
4.Onion
Posted Date:-2022-09-21 08:43:46
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
Posted Date:-2022-09-21 09:12:46
Anemophily takes place by:
1.By Bird
2.By Bat
3.By Snail
4. By Wind
Posted Date:-2022-09-21 08:15:04
Asexual reproduction in Penicillium fungus usually takes place through?
1. Budding
2.Fission
3. Conidia
4.Gemmules
Posted Date:-2022-09-21 08:46:37
Budding is the example of :
1.Vegetative reproduction
2.Tissue culture
3.Sexual production
4.Dispersal
Posted Date:-2022-09-21 08:44:37
Closed flower:
1. Decliny
2. Cteistogamy
3.Dichogamy
4. None of these
Posted Date:-2022-09-21 09:06:36
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
Posted Date:-2022-09-21 09:09:01
Demerit of self pollinatlon is:
1.Unisexua
2. Dichoganty
3. Hetorostyle
4.None of these
Posted Date:-2022-09-21 09:07:08
Development of fruit without fertilizations is:
1. Parthenogenesis
2.Heterostyly
3.Parthenocarpy
4.Agamospermy
Posted Date:-2022-09-21 09:26:14
Double fertilization in angiosperms was discovered by:
1. Strassburger
2. J. C. Bose
3.Maheshwari
4.Nawaschin
Posted Date:-2022-09-21 09:22:32
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
Posted Date:-2022-09-21 09:23:52
Earthworm is:
1.Unisexual
2. Bisexual
3.Asexual
4. Neutral
Posted Date:-2022-09-21 08:42:56
Entemophily take place by
1.By Bird
2.By Bat
3.By Wind
4. By Insect
Posted Date:-2022-09-21 08:17:04
Fatheroflndian Angiosperm Embnology is:
1. B. M. John
2.B. G L. Swami
3.R.N. Kapil
4. P. Maheshwari
Posted Date:-2022-09-21 09:18:15
Haploid plants develop by pollen are called ……..
1.Emasculation
2. Parthenocarpy
3.androgenesis
4. somatic hybridization
Posted Date:-2022-09-21 08:59:50
How many meiotic divisions are necessary to produce 100 pollen grains ?
1. 100
2.50
3.25
4.20
Posted Date:-2022-09-21 09:23:12
If cotyledons are brought above the soil the germination is:
1.Hypogeal
2.Epigeal
3.Vivipaiy
4. None of these
Posted Date:-2022-09-21 09:20:13
In an ovule meiotic takes place in:
1.Nucellus
2. Megaspore mother cell
3.Megaspore
4. Archesporium
Posted Date:-2022-09-21 09:13:26
In Capsella the endosperm in generally:
1.Haploid
2. Diploid
3. Triploid
4.Tetraploid
Posted Date:-2022-09-21 09:14:12
In higher plants, fertilization is :
1.External
2. Internal
3. In water
4. In air
Posted Date:-2022-09-21 08:54:44
In higher plants, meiosis occurs?
1.During formation of gametes
2.During fertilization
3.During embryogenesis
4. In seeds
Posted Date:-2022-09-21 08:42:15
In Monocots, grafting is almost impossible because they lack :
1.Cambium
2. Ground tissue
3. Vascular bundle
4. Parenchymatous cells
Posted Date:-2022-09-21 09:21:57
In potato, which structure takes part in vegetative reproduction?
1.Adventitious root
2.Apex bud of stem
3.Germinating eye bud
4.Arial shoot
Posted Date:-2022-09-21 08:49:19
Normal Embryosac of Angiosperm is :
1.Unicellular
2. Bicelled
3.Penta celled
4.Seven called
Posted Date:-2022-09-21 09:08:20
Parthenogenesis is common in :
1. Grape
2.Mango
3. Citrus
4.Litchi
Posted Date:-2022-09-21 09:10:10
Pollination by Bat is called :
1.Omithorphily
2.Entemophily
3.Cheropterophily
4.Hydrophily
Posted Date:-2022-09-21 08:14:27
Pollination by bats is called:
1.omithophily
2. Entromophily
3.Cheiropterophily
4. Hydrophily
Posted Date:-2022-09-21 09:24:32
Pollination by snails is called:
1.Malecophily
2. Zoophily
3. Anemophily
4. Hydrophily
Posted Date:-2022-09-21 09:25:11
Pollination in Lotus is:
1.By water
2.By wind
3.By insect
4. All of these
Posted Date:-2022-09-21 08:59:16
Polymbryony occurs in:
1.Maize
2. Citrus
3.Corchorus
4.Carthamus
Posted Date:-2022-09-21 09:21:09
The example of bulb is:
1. Ginger
2.Doob grass
3.Onion
4. Potato
Posted Date:-2022-09-21 08:56:11
The organism similar to parent can be obtained by:
1.Speed
2. Zygote
3. Gametes
4. Binary fission
Posted Date:-2022-09-21 08:56:45
The reproduction takes place by gemma :
1. In higher plants
2.In lower animals
3. In some bryophytes
4. In mammals
Posted Date:-2022-09-21 08:55:37
The term scion is used in relation to :
1.Embryology
2. Sexual reproduction
3. Pollen
4.Grafting
Posted Date:-2022-09-21 08:57:18
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
Posted Date:-2022-09-21 09:16:33
Vegelative reproduction takes place in Bryophyllum :
1.By buds
2.By leaves
3.By seeds
4.By roots
Posted Date:-2022-09-21 08:57:50
Vegetative reproduction takes place in Agave:
1.By bulbils
2.By hybrid
3.By stolon
4. By rhizome
Posted Date:-2022-09-21 08:58:28
Vegetative reproduction takes place in Bacteria :
1.By binary fission
2. By hybridization
3.By fiission
4.By fission
Posted Date:-2022-09-21 08:48:38
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
Posted Date:-2022-09-21 08:45:41
When more than one embryoper embryosac is found. It is called:
1. Embryogeny
2.Amphimisis
3.Agamospormy
4.Polyembryoni
Posted Date:-2022-09-21 09:27:51
When pollen tube enter into the nucellus through micropyle is called:
1. Porogamy
2.Xenogamy
3.Mesogamy
4. Dikogamy
Posted Date:-2022-09-21 09:28:39
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
Posted Date:-2022-09-21 08:47:28
Which of the following is viviparous?
1.Cockroach
2.Scorpion
3. Bee
4. Butterfly
Posted Date:-2022-09-21 08:53:08
Which structure is not found in Angiosperm?
1.Archegonium
2. Carpel
3.Anther
4.Magagametophyte
Posted Date:-2022-09-21 09:07:46
Which structure takes part in gametogenesis :
1. Male gamete
2.Female gamete
3.Both (a) and (b)
4.Male or female gamete
Posted Date:-2022-09-21 08:50:19
Who discovered fertilization?
1. Nawaschin
2.Strassburger
3.Leeuwen Hock
4. Robert Hook
Posted Date:-2022-09-21 09:27:04
Who proved that the cells are totipotent?
1. White
2. Skoog
3. Miller
4. Steward
Posted Date:-2022-09-21 09:17:06