Evolution theory: Evolution theory based on the observation made during the sea voyage by Charles Darwin in sail ship H.M.S Beagle around the world. He was appointed as a naturalist for this voyage to study the vast flora and fauna of the different continents and islands. He said that every living organism, whether animal or […]
Author: Shifa Ali
THEORIES OF ‘THE ORIGIN OF LIFE’
Theory of special creation- This states that life was created by supernatural power in the form which has not undergone any changes. It was given by FATHER SUAREZ. God created life in six days from Materia prima and man was created on the sixth day. According to this theory, the earth is about 4000 years […]
what is evolution?
WHAT IS THE MEANING OF EVOLUTION? All the life forms that we see around us like plants, animals, or microorganisms comprise the biodiversity on earth. These all life forms have a long history of changes and the study of the history of life forms on earth is called Evolutionary biology. Evolution in simple language is […]
TRANSCRIPTION Difference between PROKARYOTES AND EUKARYOTES
Transcription: This is a process in which the information from a DNA strand is copied into messenger RNA (m-RNA). It describes how a DNA Strand is converted into RNA (m-RNA). This is a process of the central dogma. To understand the difference between prokaryotic and eukaryotic transcription first we must know about what transcription is […]
TRANSCRIPTION
TRANSCRIPTION UNIT- It is the collective term used for all the base pairs present on DNA. It helps in the process of transcription. THESE ARE OF THE FOLLOWING THREE TYPES- PROMOTER- These are the base sequences that initiate the process of transcription and are present at 5’ end of the coding strand. STRUCTURAL GENE- These […]