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Natural selection can therefore mean differential reproduction among members of the sarne gene pool. We earlier said that selection would promote those alleles that give rise to phenotypes that are better adapted to a given environment. In other words, the frequencies of 'such alleles would tend to increase and those of ill-adapted ones would tend to decrease. What we are sayingis that natural selection is a matter of changes in gene frequencies. Differential reproduction has a dual role to perform. One it leads to or maintains adaptations and therefore determines whether individuals of a population or species will survive; and two, it is a process which determines what changes will occur in the frequencies of alleles in a gene pool of sexually reproducing individuals.
Explain Electron transport chain Electron transport chain :Transport of high-energy electrons through a series of carriers in mitochondria.
The human skeleton has evolved from that of four-legged animals. Unfortunately, the adaptation is far from perfect; thus, our upright posture causes problems like backage and the k
Q. What do you mean by Oxalates? Oxalates are widely distributed in plant foods mostly in the form of calcium salts. Oxalates are known to interfere with calcium absorpti
Q. Collection of plant specimens? Collection of plant specimens is essential for taxonomic research. These circumscribe species and document their variability. Plant material i
Define ailing and failing Clinically unhealthy implants are classified as "ailing" or "failing". It is necessary to distinguish between an ailing versus a failing implant to de
Non living vs. Living matter As is clear from above account the energy of matter resides in its chemical organization. The total potential chemical energy, entrapped as b
How does temperature affect the rate of cellular respiration? Please explain with great detail!
Mitral Valve Repair : Whenever possible, the valve has to be repaired rather than replaced. Preoperative investigations and a TEE done on the operating table will help the surg
Transferring the Patient form ICU to Ward The patient is made to ambulate in ICU before shifting to ward . vitals are stabilized. The ward nurse is explained the pa
Third Week - Embryonic Development Throughout the third week of development the ICM separates from the uophoblast and forms the flattened embryonic disc, which at first consi
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