APPLICATIONS OF GENETIC TECHNOLOGIES
abidaToday biotechnology products are produced from genetically engineered criteria, plants and animals. Organisms that have a foreign gene inserted to them are called transgenic organisms. ( ) TransgenIc Bacteria he…
Phytochromes – Discovery , Types & Mechanism
sanaThe proteins present in the leaves which absorb light of different wave lengths are called phytochromes. DISCOVERY OF PHYTOCHROMES White light consists of radiations from 390 to 810p. The plant…
CHROMOSOME ABERRATION
rubabAny numerical or structural change in the usual chromosome complement of a cell or organism is called chromosome aberration. There are two types of chromosomal aberrations: (a) Changes in the…
Recombinant DNA and Recombinant DNA Technology
The DNA which contains DNA from two different sources is called Recombinant DNA and the technology for the formation of recombinant DNA is called DNA technology. Following materials are required…
MUTATIONS
The changes in the genetic makeup of a cell are Called mutations. The mutations alter the structure of chromosomes. Sometimes, a point mutation occurs in a gamete, or in a…
Control of Gene Expression in Eukaryotes
The expression of gene can be controlled at different levels in the eukaryotes Transcriptional Control of Gene Expression The RNA synthesis depends on RNA polymerase enzymes. Numerous proteins called transcription…
SUBJECTIVE QUESTIONS OF MORPHOLOGY AND PHYTOGRAPH
sidraSubjective Questions: I.What is root. Give its different types and functions. What is stem? Give its descriptive terms. Describe different types of stem. Describe different types of underground stems. Give…
DEFINITIONS AND KEY POINTS OF MORPHOLOGY AND PHYTOGRAPH
Root The cylindrical plant organ -without chlorophyll. growing towards the gravity is called root. Tap root The root directly raised from the seed is called tap root. Fibrous roots tap…
TRANSLATION
The synthesis of protein at the ribosomes form mRNA is called translation. Role of tr.n:;, in transcription Transfer RNA (tRNA) plays an important role in translation. It reads codes on…
Objectives of Transmission of Genetic Material In Bacteria
Multiple Choice Questions (MCQs) ' The transfer of genetic material between bacteria through cell-to-cell contact is called bacterial. (a) Conjugation (b) Transformation(c) Transduction (d) None Episome is a: (a) Bacteria …