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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.
Cells are classified into eukaryotic or prokaryotic. Prokaryotic cell is that with no a delimited nucleus. Eukaryotic cells are those with nucleus delimited by membrane.
Implant site evaluation 1. Ridge: Total buccolingual width of the ridge- the thickness of the soft tissue ( bucally +lingually)= Buccolingual width of the bone. There shou
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ROLE OF NaCl - It forms .9% of blood of mammal. It forms .7% of blood of frog. Bicarbonates of Na+ act as buffer for pH constancy. Involved in active transport of gluc
Chiasmata formation takes place where crossing over occurs. Here Chromatid segments are exchanged which contributes to genetic variability. The 46 homologous chromosomes arrange at
Coevolutionary relationships between parasites and their hosts can be more complicated than between predators and their prey. As in the case of prey-predator relationship, one can
In the eukaryotes replication of chromosomal DNA happens only in the S phase of the cell cycle. As for bacterial DNA, eukaryotic DNA is replicated figure: The euk
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If 15% of the nucleotides in a DNA molecule contain guanine, what percentage of the nucleotides having each of the other three bases? Describe your reasoning. As guanine and cy
Define Vitamins requirement to avoid underweight problem? Vitamins and Minerals: If the diet provides good amounts of fresh fruits and vegetables, vitamin or mineral supplement
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