Pollen embryoids were first developed by

Pollen embryoids were first developed by
by

1 Answer

Answer :

Pollen embryoids were first developed by – Guha and Maheshwari
by

Related questions

With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Description : With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Last Answer : Ans. ((a))

Pollen embryoids were discovered by

Description : Pollen embryoids were discovered by

Last Answer : Pollen embryoids were discovered by A. Konar and Natraja B. Skoog and Miller C. Guha and Maheshwri D. Helperian and meristem

In tissue culture medium, the embryoids formed from pollen grains is due to (a) cellular totipotency (b) organogenesis (c) double fertilization (d) test tube culture.

Description : In tissue culture medium, the embryoids formed from pollen grains is due to (a) cellular totipotency (b) organogenesis (c) double fertilization (d) test tube culture.

Last Answer : (a) cellular totipotency

Explain "Shimal Animal Pollen Flower" ?

Description : Explain "Shimal Animal Pollen Flower" ?

Last Answer : Animal flowers are usually fairly large. However, even though it is small, the flowers are decorated with inflorescences. Their colors are attractive. All these flowers may or may not have an odor. As these features are present in Shimul flower, Shimul flower is also an animal flower.

In angiosperm, triple fusion is necessary for the formation of: (a) Embryo (b) Pollen (c) Endosperm (d) Leaf

Description : In angiosperm, triple fusion is necessary for the formation of: (a) Embryo (b) Pollen (c) Endosperm (d) Leaf

Last Answer : Ans. ((c))

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

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))

The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as

Description : The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as

Last Answer : The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as – Intra-ovarian pollination

When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as

Description : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as

Last Answer : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as – Heterofertilization

Effect of pollen grains on the properties of endosperms is called as

Description : Effect of pollen grains on the properties of endosperms is called as

Last Answer : Effect of pollen grains on the properties of endosperms is called as – Xenia

Very long pollen with needle shaped structures are found in

Description : Very long pollen with needle shaped structures are found in

Last Answer : Very long pollen with needle shaped structures are found in – Zostera

Before, germination of pollen, the moisture necessary for pollen hydration is provided by

Description : Before, germination of pollen, the moisture necessary for pollen hydration is provided by

Last Answer : Before, germination of pollen, the moisture necessary for pollen hydration is provided by – Stigma

In Angiosperms, during pollination, the pollen grains are mostly

Description : In Angiosperms, during pollination, the pollen grains are mostly

Last Answer : In Angiosperms, during pollination, the pollen grains are mostly – Bicellular

Formation of 8-nucleate embryosac by pollen grains is also called as

Description : Formation of 8-nucleate embryosac by pollen grains is also called as

Last Answer : Formation of 8-nucleate embryosac by pollen grains is also called as – Nemec phenomenon 

Pollen grains of angiosperms are

Description : Pollen grains of angiosperms are

Last Answer : Pollen grains of angiosperms are – Partially developed male gametophyte

What is meant by Monosiphonous and Polysiphonous pollen grains? Give examples.

Description : What is meant by Monosiphonous and Polysiphonous pollen grains? Give examples. 

Last Answer : Ans: Pollen gains that form single pollen tube are monosiphonous. Ex: Solanum. Which form more than one pollen tubes are Polysiphonous. Ex: Malvaceae, Cucurbitaceae 

In a cell haploid chromosome number is 15. What number is found in Pollen grain, Zygote, Primary endosperm nucleus and Colchicine treated zygote.

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.

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

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

First bionisecticide developed on commercial scale was: (a) Quinine (b) DDT (c) Organophosphates (d) Sporeine

Description : First bionisecticide developed on commercial scale was: (a) Quinine (b) DDT (c) Organophosphates (d) Sporeine

Last Answer : Ans. ((d))

Fragrant flowers with well developed nectarines are an adaptation for: (a) Zoophily (b) Anemophily (c) Entornophily (d) Hydfophily

Description : Fragrant flowers with well developed nectarines are an adaptation for: (a) Zoophily (b) Anemophily (c) Entornophily (d) Hydfophily

Last Answer : Ans. ((c))

Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells

Description : Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells

Last Answer : Ans. ((d))

Fragrant flowers with well developed nectarines are an adaptation for: (a) Anemophily (b) Ornithophily (c) Entamophily (d) Hydrophily

Description : Fragrant flowers with well developed nectarines are an adaptation for: (a) Anemophily (b) Ornithophily (c) Entamophily (d) Hydrophily

Last Answer : Ans. ((c))

Select the correct statement: (1) C4 pathway for. CO2 fixation were discovered by Hatch and Slack (2) CO2 is essential for photosynthesis (3) Addition of sodium carbonate in water retards photosynthetic rate in vallisneria (4) Phloem is the principal pathway for translocation of solutes

Description : Select the correct statement: (1) C4 pathway for. CO2 fixation were discovered by Hatch and Slack (2) CO2 is essential for photosynthesis (3) Addition of sodium carbonate in water retards photosynthetic rate in vallisneria (4) Phloem is the principal pathway for translocation of solutes

Last Answer : Ans. ((c))

Coacervates were formed by a) DNA b) Radiations c) Polymerization d) Polymerisation and aggregation

Description : Coacervates were formed by a) DNA b) Radiations c) Polymerization d) Polymerisation and aggregation

Last Answer : d) Polymerisation and aggregation

Coacervates were experimentally produced by a) Oparin and Haldane b) Darwin c) Aristotle d) Louis Pasture

Description : Coacervates were experimentally produced by a) Oparin and Haldane b) Darwin c) Aristotle d) Louis Pasture 

Last Answer : a) Oparin and Haldane

The first reaction in photorespiration is: (a) Decarboxylation (b) Oxygenation (c) Carboxylation (d) Phosphorylation

Description : The first reaction in photorespiration is: (a) Decarboxylation (b) Oxygenation (c) Carboxylation (d) Phosphorylation

Last Answer : Ans. ((b))

First CO2 receptor in C4 plants is: (a) PGA (b) PEP (c) RuBD (d) OAA

Description : First CO2 receptor in C4 plants is: (a) PGA (b) PEP (c) RuBD (d) OAA

Last Answer : Ans. ((b))

Ringing experiment was first performed by: a. Godlewski b. Strasburger c. Hartig d. J.C.Bose

Description : Ringing experiment was first performed by: a. Godlewski b. Strasburger c. Hartig d. J.C.Bose

Last Answer : c. Hartig

Lampbrush chromosome was first discovered by a. Ruckert b. Robert c. Ammajan d. Farenten

Description : Lampbrush chromosome was first discovered by a. Ruckert b. Robert c. Ammajan d. Farenten

Last Answer : a. Ruckert

Classification of stomata was first given by

Description : Classification of stomata was first given by

Last Answer : Classification of stomata was first given by – Metcalfe and Chalk (1950)

Who discovered living cells? Name the first discovered living organism

Description : Who discovered living cells? Name the first discovered living organism  

Last Answer : Ans: Leeuwenhoek, Bacteria 

A plant breeder: waists to develop a disease resistant variety. What should he do first? a) Hybridisation b) Mutation c) Selection d) Production of crop

Description : A plant breeder: waists to develop a disease resistant variety. What should he do first? a) Hybridisation b) Mutation c) Selection d) Production of crop 

Last Answer :  c) Selection

How do you care for an orchid?

Description : How do you care for an orchid?

Last Answer : I have two, and they require almost no care except water. It is the time of year they shed their blossoms so don’t worry. In the spring they will come right back.

Where's can I buy one of those new "Jumbo" Venus Flytrap's?

Description : Where's can I buy one of those new "Jumbo" Venus Flytrap's?

Last Answer : You can buy them at The Little Shop of Horrors.

What happens to a fully grown fruit tree if it is transplanted?

Description : What happens to a fully grown fruit tree if it is transplanted?

Last Answer : Fruit trees are so cheap…why not just plant a new one?

What is the mechanism for motion in plants?

Description : What is the mechanism for motion in plants?

Last Answer : dude, I think this can be googled…. ;-P sorry if i sound like a smart alec….

What is cookoo spit?

Description : What is cookoo spit?

Last Answer : answer:You’re close. The guys inside the foam are called Spittle Bugs and there are 23,000 species of them More info

What is Cerebellum ?

Description : What is Cerebellum ?

Last Answer : The segment on the opposite side of the pons is the cerebellum. It stays in a very buoyant state.

Why do fruits fall prematurely ?

Description : Why do fruits fall prematurely ?

Last Answer : Hormone is the chemical substance that is produced in the cell and carried from the place of origin to control the functions of the cell at a distant place. Hormone deficiency causes various problems in ... of fruits. If the plant lacks a hormone called auxin, the fruit will fall off prematurely.

What does tropic movement mean ?

Description : What does tropic movement mean ?

Last Answer : Plants have the same sensory capacity as other organisms. Therefore, the stimulation that externally stimulates the plant body results in the movement and growth of the plant. These movements are called tropical movements. For example, the effect of light is to move towards the light of the stem.

What is the role of auxin in plants ?

Description : What is the role of auxin in plants ?

Last Answer : The role of auxin in plants is as follows : Prevents premature fall of fruit. Helps to produce seedless fruit. Auxin is also used for seed germination and weed control.

Where is the lenticel located ?

Description : Where is the lenticel located ?

Last Answer : Located on the lenticel stem.

What is the name of the reproductive organ ?

Description : What is the name of the reproductive organ ?

Last Answer : Stolon is the name of the reproductive organ.

What is the upper part of the embryonic root called ?

Description : What is the upper part of the embryonic root called ?

Last Answer : The upper part of the embryonic root is called the hypocotyl.

What does Patal propagate through ?

Description : What does Patal propagate through ?

Last Answer : Patal propagates through roots.

What is the seed after fertilization ?

Description : What is the seed after fertilization ?

Last Answer : After fertilization, the egg becomes a seed.

What happens after fertilization ?

Description : What happens after fertilization ?

Last Answer : After fertilization, the uterus becomes a result.

title : _

Description : title : _

Last Answer : Kachura branch stems are changed for reproduction.

Why Flowers Are Needed ?

Description : Why Flowers Are Needed ?

Last Answer : The outermost stem of a flower is called a circle. The stalk protects other parts of the flower especially from sun , rain and insects in the twenties. That is why swelling is required.

Why Insects Are Called A Means Of Pollination ?

Description : Why Insects Are Called A Means Of Pollination ?

Last Answer : A means of insect pollination. Insects swarm around to eat honey or attract beautiful colors. At this time the pollen sticks to the carrier. Whenever this carrier sits on another flower of the same species ... to the head of the next flower. This is why insects are called the medium of pollination.

What do you mean by inflorescence ?

Description : What do you mean by inflorescence ?

Last Answer : The flowers are arranged in a special way on a branch arising from the desired buds at the apex of the stem. This branch with flowers is called inflorescence. It is very important for ... is infinite then irregular inflorescence and if the growth is finite then it is called infinite inflorescence.