Home
Class 10
BIOLOGY
Read the following lines, find the error...

Read the following lines, find the error and rewrite it.
Pollen grain may have a pollen tube and one nucleus. It germinates only on the style.

Text Solution

Verified by Experts

Pollen grain may have a pollen tube and two nuclei. It germinates only on the stigma.
Promotional Banner

Topper's Solved these Questions

  • REPRODUCTION THE GENERATING SYSTEM

    VGS PUBLICATION-BRILLIANT|Exercise CREATIVE QUESTIONS FOR NEW MODEL PAPER (PREPARATION QUESTIONS FOR THE EXAMINATION PURPOSE)|70 Videos

  • REPRODUCTION THE GENERATING SYSTEM

    VGS PUBLICATION-BRILLIANT|Exercise CREATIVE QUESTIONS FOR NEW MODEL PAPER (1 MARK QUESTIONS)|64 Videos

  • REPRODUCTION THE GENERATING SYSTEM

    VGS PUBLICATION-BRILLIANT|Exercise OBJECTIVE ASSIGNMENT|7 Videos

  • REPRODUCTION

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|347 Videos

  • RESPIRATION

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|328 Videos

Similar Questions

Explore conceptually related problems

Read the following lines, find the error and rewrite it. Zygote is in '3n' condition and endosperm nucleus is in '2n' condition.

Read the following lines, find the error and rewrite it. Majority of flowering plants have an embryosac consisting of eight cells and nine nuclei.

Read the sentence, find the error and rewrite it. Adrenalin prepares our body to fight with ohters only.

Read the lines, find the error and rewrite it. One of the two sperms fuses with the egg to form a zygote. By the time the egg cell gas been fertilized, the two polar nuclei to form a single endo sperm nucleus.

Pollen grain represents one of the following

A flower which never opens and its pollen grains germinate inside the anther and their pollen tubes enter the carpels to fertilise the ovules is called

Read the following statements and select the correct ones. i) All vertebrates are capable of osmoregulation and thermoregulation. ii) Some species have evolved the ability to regulate, but only over a limited range of environmental conditions, beyond which they simply conform. iii)99 per cent of animals and nearly all plants can- not maintain a constant internal environment. - iv)Animals arc either perfect regulators or perfect conformers.

The Pollen grain has 2 Nuclei. Whenever the pollen tube enters the Embryo soon after the tip of the pollen tube enters the embryo sec, the end of the tube ruptures and releases the two sperms into the embryo sac. One of the two sperms fuses with the egg to form 'X' and another sperm fuses with polar nuclei and form Y. What are X and Y in the above para?

The only electron in the hydrogen atom resides under ordinary conditions on the first orbit. When energy is supplied, the electron moves to higher energy orbit depending on the amount of energy absorbed. When this electron returns to any of the lower orbits, it emits energy. Lyman series is formed when the electron returns to the lowest orbit while Balmer series is formed when the electron returns to second orbit. Similarly, Paschen, Brackett and Pfund series are formed when electron returns to the third, fourth orbits from higher energy orbits respectively (as shown in figure) Maximum number of lines produced when an electron jumps from nth level to ground level is equal to (n(n-1))/(2) . For example, in the case of n = 4, number of lines produced is 6. (4 rarr 3, 4 rarr 2, 4 rarr 1, 3 rarr 2, 3 rarr 1, 2 rarr 1) . When an electron returns from n_(2) to n_(1) state, the number of lines in the spectrum will be equal to ((n_(2) - n_(1))(n_(2)-n_(1) +1))/(2) If the electron comes back from energy level having energy E_(2) to energy level having energy E_(2) then the difference may be expressed in terms of energy of photon as E_(2) - E_(1) = Delta E, lambda = (h c)/(Delta E) . Since h and c are constant, Delta E corresponds to definite energy, thus each transition from one energy level to another will prouce a higher of definite wavelength. THis is actually observed as a line in the spectrum of hydrogen atom. Wave number of the line is given by the formula bar(v) = RZ^(2)((1)/(n_(1)^(2)) - (1)/(n_(2)^(2))) Where R is a Rydberg constant (R = 1.1 xx 10^(7)) (i) First line of a series : it is called .line of logest wavelength. or .line of shortest energy.. (ii) Series limit of last of a series : It is the line of shortest wavelength or line of highest energy. The difference in the wavelength of the 2^(nd) line of Lyman series and last line of Bracket series in a hydrogen sample is

The only electron in the hydrogen atom resides under ordinary conditions on the first orbit. When energy is supplied, the electron moves to higher energy orbit depending on the amount of energy absorbed. When this electron returns to any of the lower orbits, it emits energy. Lyman series is formed when the electron returns to the lowest orbit while Balmer series is formed when the electron returns to second orbit. Similarly, Paschen, Brackett and Pfund series are formed when electron returns to the third, fourth orbits from higher energy orbits respectively (as shown in figure) Maximum number of lines produced when an electron jumps from nth level to ground level is equal to (n(n-1))/(2) . For example, in the case of n = 4, number of lines produced is 6. (4 rarr 3, 4 rarr 2, 4 rarr 1, 3 rarr 2, 3 rarr 1, 2 rarr 1) . When an electron returns from n_(2) to n_(1) state, the number of lines in the spectrum will be equal to ((n_(2) - n_(1))(n_(2)-n_(1) +1))/(2) If the electron comes back from energy level having energy E_(2) to energy level having energy E_(2) then the difference may be expressed in terms of energy of photon as E_(2) - E_(1) = Delta E, lambda = (h c)/(Delta E) . Since h and c are constant, Delta E corresponds to definite energy, thus each transition from one energy level to another will prouce a higher of definite wavelength. THis is actually observed as a line in the spectrum of hydrogen atom. Wave number of the line is given by the formula bar(v) = RZ^(2)((1)/(n_(1)^(2)) - (1)/(n_(2)^(2))) Where R is a Rydberg constant (R = 1.1 xx 10^(7)) (i) First line of a series : it is called .line of logest wavelength. or .line of shortest energy.. (ii) Series limit of last of a series : It is the line of shortest wavelength or line of highest energy. Let v_(1) be the frequency of the series limit of the Lyman series, v_(2) be the frequency of the first line of the Lyman series, and v_(3) be the frequency of the series limit of the Balmer series