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REDISCOVERY OF MENDEL'S LAWS (THE BIRTH OF GENETICS)
1. It was in 1900 that three botanist independently rediscovered the principles of heredity already worked out by Mendel. They were :-
(i) Carl Correns - Germany
(ii) Hugo de Vries - Holland
(iii) Erich von Tschermak - Austria
2. Correns give the two law of Mendelism - law of segregation and law of independent assortment.
3. Hugo de Vries also found out the paper of Mendel and got it published in "Flora" in 1901.
4. Bateson, Punnet and other subsequent workers found Mendel's work to be of universal application including animals.
What is the basic morphology of a protozoan cell? Protozoans are eukaryotic cells so they have organelles and structures common to this part of cell: endoplasmic reticula, Gol
State in brief about respiration When we breathe in the air, our chest expands and air is taken in the lungs and when we breathe out chest returns to its resting position. This
division o kingdoms
Larval forms - Porifera In the majority of sponges the larval stage develops in the body of the parent. The larva is generally at the blastula stage of development. Figure dis
Q. How does the intensity of simple diffusion differ in relation to the concentration gradient of the moved substance? The higher the concentration gradient of a substance the
Infective Endocarditis It is an infection of the endocardial surface with micro organisms present in the lesion. The endocardium is contagions with the valves of the heart.
Main successful vaccines are live attenuated and heat killed vaccines.
DRINKING & DRIVING - It should not be mixed because alcohol - 1. Impairs ability to judge distances. 2. Reduces capacity to coordinate limb muscles. 3.
Locomotory Structures Annelids possess three kinds of locomotory structures, namely parapodia, setae and suckers. Parapodia are segmentally arranged, lateral, hollow extensio
Zygotic or Suspensor Polyembryony Cleavage of the apical cells of the globular or filamentous proembryo produced by the zygote may result in two or more embryos in a seed. Th
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