Electrical Properties of Solids Classification of Solids on the Basis of Electrical Conductivity: Solids display a deviating range of electrical conductivities, expanding of magnitude right from 10 to the power of (-20) to 10 to the power of (7) ohm-1 m–1. Solids can be divided into 3 types on their conductivities’ basis. 1. Conductors: The … Read more
Aromatic hydrocarbons – carcinogenicity and toxicity Most polynuclear hydrocarbons are carcinogenic in nature. Polynuclear hydrocarbons contain two or more benzene rings fused together. These are also called polycyclic aromatic compounds. For example, naphthalene contains two benzene rings fused together. Other common examples are anthracene, phenanthracene, etc. the major source of these polynuclear hydrocarbons is coal … Read more
Aromatic hydrocarbons- The Directive influence of the various functional group in mono-substituted benzene As we have learned, all the six hydrogen atoms of benzene rings are equivalent. Therefore, replacement of any one of these six hydrogen atoms by any substitution always forms a single mono substituted product. However, when mono-substituted benzene is subjected to further … Read more
IVF stands for the in vitro fertilization. It is an assisted type of reproductive technology that is used for the treatment of infertility and gestational surrogacy. It is a series of complex procedures that are used for preventing the genetic problems, or to help the fertility and mainly it is assisted with the conception … Read more
Generally, a single gene has two alternative forms or alleles, one is found in each of the homologous chromosomes. And when a gene has more than two alleles, it is known to exhibit multiple alleles. Multiple alleles do arise by mutation of the wild type gene and occupy the same locus on the homologous … Read more
Incomplete dominance which is also referred to as partial dominance, semi-dominance or intermediate inheritance occurs when the phenotype of the heterozygous genotype is distinct from and often intermediate to the phenotypes of the homozygous genotypes. For instance, it can be deduced that snapdragon flower color is homozygous for either red or white. When the … Read more
When it comes to contribution or importance of biodiversity to human existence, this is beyond measure because it affects or touches all sphere of life. for many reasons, the role biodiversity can not be underrated by the globe. Also considered by many to have intrinsic value which means, each species has a value and … Read more
Human insulin was the initially recombinant bio-pharmaceutical approved in the US in 1982. Before that it introduction, protein products approved for use in humans were drawn from natural sources. Thus the discovery of new bio-pharmaceutical started at a rather leisurely pace. The hormone insulin is essential for the control of blood sugar ranges. Diabetes … Read more
About six million years ago, human evolution begins in Africa, and there is a long process of the changes, from which our ancestors went through and ultimately, they became modern human beings. The study of fossils helps to uncover this process and the underlying theory of evolution. The theory of human evolution is extremely … Read more
Biodiversity hotspots are the important places on the earth. They are biologically rich, but at the same time, they are deeply threatened. The work must be done for the conservation of the biological hotspots. For a region to qualify as the biodiversity hotspot, it must follow two main criteria. It should have at least … Read more