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The Electrocardiograph (ECG)

The principle and significance: The Electrocardiograph (ECG): It is clinically very useful, as it shows the electrical activity within the heart, simply by placing electrodes at various points on the body surface. This enables clinicians to determine the state of the conducting system and of the myocardium itself, as damage to the myocardium alters the [...]

By |2018-05-12T11:16:41+00:00May 12th, 2018|Molecular Biology|Comments Off on The Electrocardiograph (ECG)

Light signaling

Light is the most important source of energy for plants for continuous uptake of energy and for themselves to the changes in their natural environment because they cannot move and change their position. So in order to regulate their photosynthetic capacity in view of the changing light environment they have to adapt themselves. For [...]

By |2018-05-12T10:50:29+00:00May 12th, 2018|Molecular Biology|Comments Off on Light signaling

Cell signalling

Cells usually do not live in isolation. Cells lie in the form of groups in diverse tissues and cells. Therefore, cell to cell communication network is needed to coordinate the growth, differentiation and metabolism of the cells. Direct cell to cell contact is a way of communication in cells present in small groups. But [...]

By |2018-05-11T10:56:03+00:00May 11th, 2018|Food Microbiology, Molecular Biology|Comments Off on Cell signalling

Plants responses under Low Temperature Stress

The plants can be classified into three broad categories on the basis of their response to the low temperature conditions. Chill Sensitive Plants: These plants are seriously injured by temperature above 0°C, below 15°C. Chill Resistant Plants: These plants are able to tolerate low temperature but get seriously injured when ice start to form in [...]

By |2018-05-11T09:49:40+00:00May 11th, 2018|Plant Tissue Culture|Comments Off on Plants responses under Low Temperature Stress

Responses of a plant against Abiotic Stress

If a plant is said to have an abiotic problem, it is not being affected by something living like pests, fungi, bacteria or viruses. Common factors causing abiotic injuries include water, sun, temperature, wind, soil, chemicals, contact and nutrients. For example, two branches can cross on a tree. If one branch moves, it may start [...]

By |2018-05-10T11:17:09+00:00May 10th, 2018|Plant Tissue Culture|0 Comments

Establishment of symmetry in plants

Meristematic Plant Development Phyllotaxis is known as the study of plant patterns. Diversity is present, still similar patterns can be observed in many different types of plants. A common pattern consists of two sets of spiral that form a lattice i.e., observed in the stamens and carpels of flowers, the florets of compound flowers, the [...]

By |2018-05-10T10:31:09+00:00May 10th, 2018|Plant Tissue Culture|Comments Off on Establishment of symmetry in plants

Pathogen induced diseases

Pathogen in a broad sense is anything that can infect and can cause a disease. It is a type of infectious agent that can be a virus, bacteria, prion, fungus, viroid or parasite that causes diseases in the host and the host can be a fungus, a plant, an animal or any microorganism also. [...]

By |2018-05-09T12:04:47+00:00May 9th, 2018|Food Microbiology|Comments Off on Pathogen induced diseases

Isolation of bacterial cultures

A pure culture theoretically contains a single bacterial species. There are a number of procedures available for the isolation of pure cultures from mixed populations. A pure culture may be isolated by the use of special media with specific chemical or physical agents that allow the enrichment or selection of one organism over another. [...]

By |2018-05-09T11:51:49+00:00May 9th, 2018|Food Microbiology|Comments Off on Isolation of bacterial cultures

Leaf development

Leaves are lateral outgrowth of a plant shoot which are initiated by the shoot meristem. They have finite growth, are vascularized and usually photosynthetic. Embryonic development After zygote formation, the embryo is formed inside the seed which leads to embryonic leaves and shoot apical meristem after germination. The embryonic leaves are known as cotyledons. In [...]

By |2018-05-08T11:31:39+00:00May 8th, 2018|Plant Tissue Culture|Comments Off on Leaf development

Isolation of specific nucleic acid sequences

Polymerase Chain Reaction (PCR) The polymerase chain reaction technique is carried out in vitro and is used for the amplification of DNA. It was developed by Kary Mullis in 1983. Through this technique billion copies of the desired DNA or RNA can be made in a matter of few hours. The PCR reaction mix contains [...]

By |2018-05-08T09:55:35+00:00May 8th, 2018|Molecular Biology|Comments Off on Isolation of specific nucleic acid sequences

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