Posted inPlant Sciences
Incomplete dominance
Works on problems of heredity have shown that the dominance is not of universal occurrence and there are many examples of incomplete dominance in which the genes of an allelomorphic…
Posted inPlant Sciences
Avery-MacLeod-McCarty Experiment
Extracted components from heat-killed S bacteria. After each extraction, S cells were mixed with R bacteria. R bacteria transformed each time until DNA was extracted from S cells. Avery and…
Posted inPlant Sciences Software Testing
Hershey-Chase Experiment:
Fig 1. Hershey- Chase experimented with radioactive phosphorous and sulfur to confirm that DNA is the “Transforming principle”. (Author: Thomasione. This is a file from the Wikimedia Commons; GNU Free Documentation License)…
Posted inCell Biology
Difference between Cell Wall and Cell Membrane
One of the fundamental difference between the plasma membrane and the cell wall is in the typeof organisms that they are found. The cell wall is present only in plants…
Posted inMicrobiology
The Cell Wall of Bacteria
Unlike in plant cells, the cell wall in prokaryotic bacteria is composed of peptidoglycan. This molecule is unique to bacterial cell wall composition. Peptidoglycan is a polymer composed of double-sugars…
Posted inCell Biology
CYCLIC NUCLEOTIDE-GATED ION CHANNELS AS COMPONENTS OF PLANT IMMUNITY
It is almost certain that Ca2+ fluxes play a crucial role in the activation of defense responses. Induction of ROS and activation of mitogen-activated protein kinase cascades are two examples…
Posted inMycology
श्वेत मशरूम
श्वेत मशरूम की आकृति बटन के समान होने के कारण इसको बटन मशरूम के नाम से जाना जाता है। यह मशरूम प्रारंभ में बटन के आकार के समान छोटे व…
Posted inMicrobiology
Simple and Differential Staining
STAINING METHODS INTRODUCTION Staining is technique used in microscopy to enhance contrast in the microscopic image. Stains and dyes are frequently used in biological tissues for viewing, often with the…
Posted inPlant Pathology
Red Rot of Sugarcane
DISEASE: Red Rot PATHOGEN: Colletotrichum falcatum (Glomerella tucumanensis) HOSTS: Sugarcane Symptoms and Signs Red rot is usually considered as a stalk and a seed-piece disease. Leaf Symptoms •Tiny reddish lesions…
Posted inPlant Physiology
PLANT GRAVITROPISM
Gravitropism is an important plant growth response to the environment that directs shoots upward and roots downward. when a plant shoot is inclined horizontally, the primary inflorescence stem grows upwards against…