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  • 1 answers

Hy Shona 7 years, 3 months ago

E.coli has 4.6×10^6 base pairs
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Yogita Ingle 7 years, 3 months ago

 No, blood does not have protease and nuclease.If it would have been there blood and cell would have been digested, some protease do exist in inactive form.

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Tilak Raj 7 years, 3 months ago

5 A,T,(U),C,G
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Yogita Ingle 7 years, 3 months ago

Translation is the process of converting mRNA codon sequences into an amino acid polypeptide chain. mRNA synthesised in the nucleus of an eukaryote cell migrates through the nuclear pore into the cytoplasm. Later, tRNA, amino acids and ribosomes in the cytoplasm complete the process of translation.

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Nikhil Vinay 7 years, 3 months ago

They are used for separating mRNA strands.. And also have many other usefull work in DNA fingerprinting ?
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Deepika Dahiya 7 years, 3 months ago

Leydig's cells secretes testicular harmones and androgens where as sertoli cells give nutrition to the male germ cells

Zeba Ansari 7 years, 3 months ago

Sertoli cells provide nutrition to germ cells. Leydig cells synthesis and secrete testicular hormones called androgens
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Zeba Ansari 7 years, 3 months ago

It is given in ncert book pg47 last para
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Aryan Rajput 7 years, 3 months ago

Parthenogenesis is the process by which female gamate undergoes fertilization without fusion with male gamate
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Aryan Rajput 7 years, 3 months ago

Eukaryotic cells contains membrane bound cell organelles and a definite nucleus while on the other hand procaryotic cell don't have membrane bound cell organelles and lacks a definite nucleus
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Aryan Rajput 7 years, 3 months ago

Organisms which can't be seen through naked eye are called microorganisms
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Rahul Yadav 7 years, 3 months ago

Gene flow is the transfer of genetic variation from one generation to another
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Rahul Yadav 7 years, 3 months ago

Gene migration is also called gene flow. OR allele flow i..e. , transfer of genetic variation from one generation to another
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Saumya Agrawal 7 years, 3 months ago

Yes it is .. Thanks

Nuke 7 years, 3 months ago

PCR stands for polymerase chain reaction in this reaction multiple copies of gene of intrest is synthesised in vitro . For this you require a machine/appratus known as Automated thermocycler Yhis is basically a Device which adjust the temperature inside it in a fixed cyclic manner. In addition to it you will also require the following- 1.Nucleotides 2.DNA segment(gene of intrest) 3.RNA primer(provide binding site to the taq polymerase) 4.Taq polymerase(same as the DNApolymerase, elongates the DNA✡stable at high tempratures) Now the process is like this-- 1.Temprature is increase H bonds between DNA break making the two chain seprated. 2. Temprature is lowered RNA primer is added to DNA 3.Tenmrature is increased slightly Nucliotides and taq polymerase is added and taq starts to bind them to their complementary positions 4.. And the cycle continues.... You nay think it is bit scientific and of no use but it is the right answer for this question in 5M☺☺☺
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Lipak Mohapatra 7 years, 3 months ago

Ginger- rhizome Potato- tuber Agave- bulbil
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Yogita Ingle 7 years, 3 months ago

  • The universe is almost 20 billion years old.
  • Huge clusters of galaxies comprise the universe.
  • Galaxies contain stars and clouds of gas and dust.
  • A scientific theory called big bang theory explains that, the unimaginable large explosion created the universe.
  • As the universe expanded and cooled, the temperature came down and materials condensed under the influence of gravitation to form present day galaxy.
  • Our galaxy is called Milky Way formed 4.5 billion years back.
  • There was no atmosphere on early earth.
  • Water vapour, methane, carbon dioxide and ammonia released from molten mass covered the surface.
  • The UV rays from the sun broke up water into Hydrogen and Oxygen and the lighter H2
  • Oxygen combined with ammonia and methane to form water, CO2 and others.
  • The ozone layer was formed, as it cooled, the water vapor fell as rain, to fill all the depressions and form oceans.
  • Life appeared 500 million years after the formation of earth, i.e., almost four billion years back.
  • Different scientists had put different views about the origin of life.

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