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Assuming that variability of populations were non-genetic, that is, not controlled by genetic material, once again chance events alone would determine which of the organisms would survive. But phenotypic traits of a1 organisms'have a genetic component and heritable to some degree. If an individual has some form of a trait that gives him a better chance of survival in a given environment, evidently his offspring inherit the trait. This is known as differential survival. Differential survival *auld refer to the survival of individuals in an environment to which they are well adapted. Individuals who do not possess such adaptations for the given environment may not survive to reproduce. The adaptations are genetically controlled and heritable. Differential survival leads to differential reproduction of alleles responsible for the survival of the next generation. In fact it is customary to say that natural selection is synonymous with differential reproduction. The consequence of differential reproduction is not so much that individuals survive, but that such individuals are able to perpetuate their genes in subsequent generations. Thus what really survives is the set of genes.
Most RNA molecules are single-stranded but an RNA molecule should hold regions that can form complementary base pairing where the RNA strand loops back on i
Future - Development Biology Fertilization in flowering plants is essential for sustaining life on earth. Production of most crops depends on the effectivity of the fertilisat
Describe the term - Near-far problem Signals closer to the receiver are received with less attenuation than signals farther away. Given the lack of complete orthogonality, the
Germplasm Conservation - plant tissue and organ culture Totipotent plant cells and shoot tips can be freeze-preserved in liquid nitrogen (-196? C) for long periods, and wh
MEIOSIS Every organism is mortal, It becomes old and wornout with advancing age (= ageing ) and ultimately dies ,Before death however ,it reproduces its own kind, so
What are fat soluble vitamins? As we already know, there are four fat-soluble vitamins - A, D, E and K, The presence of fat is required for the assimilation of these vitamins
What would you conclude from PCR/DGGE (denaturing gradient gel electrophoresis) analysis of a sample that yielded one band by PCR and one band with DGGE? One band by PCR and two ba
Define types of Dryers? There are many other dryer types available, such as; Osmotic Drying Impingement Drying Microwave and Dielectric Drying Superheated
Delimitation and Limitation: There may be many aspects of the problem that need to be explored, but it is difficult to cover all aspects in a single research study bec
Determine the type of bandage The most common type of bandage is the gauze bandage, a simple woven strip of material which comes in different widths and lengths.
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