Monthly archives: December, 2014

PMT Foundation Cell – Structure & Functions

Multiple Choice Questions 1) Zonula adherens is a kind of (a) filament (b) desmosome (c) membrane (d) mesosome. 2) Which of the following do not possess lipoproteinaceous membrane? (a) Lysosomes (b) Lomasomes (c) Ribosomes (d) Sphaerosomes 3. In mitochondria, cristae act as sites for (a) protein synthesis (b) breakdown of macromolecules (c) oxidation – reduction …

Applications of Biotechnology in Medicine

The recombinant DNA technological processes have made great impact in the area of healthcare by mass production of safe and more effective therapeutic drugs. A large number of human genes encoding pharmaceutically valuable proteins have been cloned and expressed in microorganisms largely employed by biotech pharmaceuticals. Initially, E. coli was used as the host for …

Biotechnology and its applications

Biotechnology is the use of living systems and organisms to develop or make useful products. It harnesses cellular and biomolecular processes to develop technologies and products that help improve our health and lives. Modern biotechnology provides breakthrough solutions and technologies to combat debilitating and rare diseases, reduce our environmental footprint, feed the hungry, use less …

Laws or Principles of Inheritance

Principles or laws of Inheritance (I) Law of Dominance When two homozygous individuals with a contrasting characters are crossed the character that appear in the F, hybrids is dominant character and that does not appear in F, is recessive character. (II) Law of segregation The law of segregation states that when a pair of contrasting …

Monohybrid cross

Mendel’s Experiment – Monohybrid Cross Monohybrid cross is a cross made to study simultaneous inheritance of a single pair of Mendelian factors. In other words, the cross in which only alternate forms of a single character are taken into consideration is called monohybrid cross. Mendel crossed tall and dwarf pea plants to study the inheritance …