Polar nuclei and double fertilization -Biology

Polar nuclei and double fertilization -Biology
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Polar nuclei and double fertilization -Biology

Description : Polar nuclei and double fertilization -Biology

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Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion

Description : Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion

Last Answer : (4) Syngamy and triple fusion

What happens to polar nuclei after fertilization? -Biology

Description : What happens to polar nuclei after fertilization? -Biology

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What happens to polar nuclei after fertilization? -Biology

Description : What happens to polar nuclei after fertilization? -Biology

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In double fertilization, the two male nuclei fuse with

Description : In double fertilization, the two male nuclei fuse with

Last Answer : In double fertilization, the two male nuclei fuse with – Egg cell and Definitive nucleus

Double fertilisation is fusion of (a) two eggs (b) two eggs and polar nuclei with pollen nuclei (c) one male gamete with egg and other with synergid (d) one male gamete with egg and other with secondary nucleus.

Description : Double fertilisation is fusion of (a) two eggs (b) two eggs and polar nuclei with pollen nuclei (c) one male gamete with egg and other with synergid (d) one male gamete with egg and other with secondary nucleus.

Last Answer : (d) one male gamete with egg and other with secondary nucleus.

Endosperm is formed during the double fertilisation by (a) two polar nuclei and one male gamete (b) one polar nuclei and one male gamete (c) ovum and male gamete (d) two polar nuclei and two male gametes.

Description : Endosperm is formed during the double fertilisation by (a) two polar nuclei and one male gamete (b) one polar nuclei and one male gamete (c) ovum and male gamete (d) two polar nuclei and two male gametes.

Last Answer : (a) two polar nuclei and one male gamete

Double fertilisation is (a) fusion of two male gametes of a pollen tube with two different eggs (b) fusion of one male gamete with two polar nuclei (c) fusion of two male gametes with one egg (d) syngamy and triple fusion.

Description : Double fertilisation is (a) fusion of two male gametes of a pollen tube with two different eggs (b) fusion of one male gamete with two polar nuclei (c) fusion of two male gametes with one egg (d) syngamy and triple fusion.

Last Answer : (d) syngamy and triple fusion.

How many polar nuclei are in the ovule of the angiosperm? -Biology

Description : How many polar nuclei are in the ovule of the angiosperm? -Biology

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Polar nuclei develop into. -Biology

Description : Polar nuclei develop into. -Biology

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How many polar nuclei are in the ovule of the angiosperm? -Biology

Description : How many polar nuclei are in the ovule of the angiosperm? -Biology

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Polar nuclei develop into. -Biology

Description : Polar nuclei develop into. -Biology

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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

Explain the process of double fertilization. -Biology

Description : Explain the process of double fertilization. -Biology

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Significance of double fertilization. -Biology

Description : Significance of double fertilization. -Biology

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Significance of double fertilization? -Biology

Description : Significance of double fertilization? -Biology

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Where does double fertilization occur in plants? -Biology

Description : Where does double fertilization occur in plants? -Biology

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Double fertilization in angiosperms produces? -Biology

Description : Double fertilization in angiosperms produces? -Biology

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Result of double fertilization in angiosperms? -Biology

Description : Result of double fertilization in angiosperms? -Biology

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Why is fertilization in the flower known as double fertilization? -Biology

Description : Why is fertilization in the flower known as double fertilization? -Biology

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Where does double fertilization occur in plants? -Biology

Description : Where does double fertilization occur in plants? -Biology

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Double fertilization in angiosperms produces? -Biology

Description : Double fertilization in angiosperms produces? -Biology

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Result of double fertilization in angiosperms? -Biology

Description : Result of double fertilization in angiosperms? -Biology

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Why is fertilization in the flower known as double fertilization? -Biology

Description : Why is fertilization in the flower known as double fertilization? -Biology

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The structural stability of the double helix of DNA is as cribbed largely to (A) Hydrogen bonding between adjacent purine bases (B) Hydrophobic bonding between staked purine and pyrinuidine nuclei (C) Hydrogen bonding between adjacent pyrimidine bases (E) Hydrogen bonding between purine and pyrimidine bases

Description : The structural stability of the double helix of DNA is as cribbed largely to (A) Hydrogen bonding between adjacent purine bases (B) Hydrophobic bonding between staked purine and ... Hydrogen bonding between adjacent pyrimidine bases (E) Hydrogen bonding between purine and pyrimidine bases

Last Answer : Answer : D

The gametes taking part in double fertilization are

Description : The gametes taking part in double fertilization are

Last Answer : The gametes taking part in double fertilization are A. 5 B. 4 C. 3 D. 2

$ Double fertilization and triple fusion occurs in Angiosperms. ! Triple fusion produces triploid type of endosperm.

Description : $ Double fertilization and triple fusion occurs in Angiosperms. ! Triple fusion produces triploid type of endosperm.

Last Answer : $ Double fertilization and triple fusion occurs in Angiosperms. ! Triple fusion produces triploid type of endosperm ... D. If both As and R are wrong.

Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes

Description : Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes

Last Answer : Ans. ((b))

Write a note on double fertilization in flowering plants?

Description : Write a note on double fertilization in flowering plants?

Last Answer : In this method pollen tube nucleus helps to carry the two sperm nuclei into the ovule. One of the two sperms fuses with egg to form diploid zygote and other sperm nucleus fuses with the ... gamete at a time fuse with two female cells, therefore this fertilization is called double fertilization. 

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

11.Theploidy of the zygote in angiosperms after double fertilization is (a) 4n (b) n (c) 2n (d) 8n.

Description : 11.Theploidy of the zygote in angiosperms after double fertilization is (a) 4n (b) n (c) 2n (d) 8n.

Last Answer : (c) 2n

Double fertilization is exhibited by : (1) Algae (2) Fungi (3) Angiosperms (4) Gymnosperms

Description : Double fertilization is exhibited by : (1) Algae (2) Fungi (3) Angiosperms (4) Gymnosperms

Last Answer : (3) Angiosperms

What do you mean by double fertilization?

Description : What do you mean by double fertilization?

Last Answer : Ans: The process of fusion of one male gamete with egg to form diploid zygote and another male gamete with the polar nuclei or secondary nucleus to form primary endosperm nucleus is called double fertilization.

Which one of the following statements is wrong?a)Pollen grains in some plants remain viable for monthsb)Intine is made up of cellulose and pectinc)When pollen is shed at two-celled state, double fertilization does not take placed)Vegetative cell is larger than generative cell

Description : Which one of the following statements is wrong?a)Pollen grains in some plants remain viable for monthsb)Intine is made up of cellulose and pectinc)When pollen is shed at two-celled state, double fertilization does not take placed)Vegetative cell is larger than generative cell

Last Answer : c)When pollen is shed at two-celled state, double fertilization does not take place

Double fertilization is exhibited by: a) Gymnosperms b) Algae c) Fungi d) Angiosperms

Description : Double fertilization is exhibited by: a) Gymnosperms b) Algae c) Fungi d) Angiosperms

Last Answer : d) Angiosperms

Double fertilization in Angiosperms was discovered by

Description : Double fertilization in Angiosperms was discovered by 

Last Answer : Double fertilization in Angiosperms was discovered by – Nawaschin

Describe double fertilization in angiosperms.

Description : Describe double fertilization in angiosperms.

Last Answer : Ans: Occurrence of two types of fertilizations in the same embryosac is called as double fertilization. It was discovered by Nawaschin in Fritillaria and Lilium. It is a feature of angiosperms. ... . It was discovered by Nawaschin in Fritillaria and Lilium. PEN develops into endosperm. 

When an elemental metal combines with an elemental nonmetal it forms a A covalent compound B binary ionic compound C double salt D polar covalent compound?

Description : When an elemental metal combines with an elemental nonmetal it forms a A covalent compound B binary ionic compound C double salt D polar covalent compound?

Last Answer : Ghh

What is the difference between basal and hypothalamaic nuclei? -Biology

Description : What is the difference between basal and hypothalamaic nuclei? -Biology

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Which plants retain sepals even after fertilization? -Biology

Description : Which plants retain sepals even after fertilization? -Biology

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Are pollination and fertilization necessary in apomixis? -Biology

Description : Are pollination and fertilization necessary in apomixis? -Biology

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What is the difference between pollination and fertilization? -Biology

Description : What is the difference between pollination and fertilization? -Biology

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What is the difference between pollination and fertilization? -Biology

Description : What is the difference between pollination and fertilization? -Biology

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Post fertilization changes in flower. -Biology

Description : Post fertilization changes in flower. -Biology

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Post fertilization changes in flower. -Biology

Description : Post fertilization changes in flower. -Biology

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why is zygote is formed after fertilization? -Biology

Description : why is zygote is formed after fertilization? -Biology

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why is zygote is formed after fertilization? -Biology

Description : why is zygote is formed after fertilization? -Biology

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What type of urban model (multiple nuclei, concentric zone, etc) does Antananarivo, Madagascar follow? How?

Description : What type of urban model (multiple nuclei, concentric zone, etc) does Antananarivo, Madagascar follow? How?

Last Answer : Could you Google a map of the city and see if by looking at it you can determine the pattern?

Why is there a tedency for electrons to settle around a nuclei in up to eight layers?

Description : Why is there a tedency for electrons to settle around a nuclei in up to eight layers?

Last Answer : Quantized energy levels result from the relation between a particle's energy and its wavelength. For a confined particle such as an electron in an atom, the wave function has the form of ... next possible orbit has a distance twice the electron's wavelength. There can be nothing in between.