Biology News
Environmental Toxicology: How chemicals interact with environmental species and human physiology - Open Access Government


Open Access Government
Toxicology, a life science discipline, seeks to understand how chemicals, both natural and man-made can interact with environmental species and human physiology to cause harm. The art of toxicology has been known since the time of Socrates who was ...

Dr Rai makes RU faculties aware of happiness, neurobiology - Daily Pioneer


Daily Pioneer
Noted medical expert Dr RK Rai delivered a lecture to 43 Professors of different Universities of India in Academic Staff College Ranchi on Friday on a topic 'Health, Happiness and Neurobiology of excellence' highlighting 15 points of health and ...

Houseplants could one day monitor home health - Science Daily


Science Daily
Stewart, a professor of plant sciences in the UT Herbert College of Agriculture -- who also holds the endowed Racheff Chair of Excellence in Plant Molecular Genetics -- came up with the idea during conversations with his wife, Susan, and Rana Abudayyeh ...

Access Excellence - Mitosis Labeled Diagram

Atlanta, Georgia - United States

Mitosis is a process of cell division which results in the production of two daughter cells from a single parent cell. The daughter cells are identical to one another and to the original parent cell.

In a typical animal cell, mitosis can be divided into four principals stages:

Prophase: The chromatin, diffuse in interphase, condenses into chromosomes. Each chromosome has duplicated and now consists of two sister chromatids. At the end of prophase, the nuclear envelope breaks down into vesicles.

Metaphase: The chromosomes align at the equitorial plate and are held in place by microtubules attached to the mitotic spindle and to part of the centromere.

Anaphase: The centromeres divide. Sister chromatids separate and move toward the corresponding poles.

Telophase: Daughter chromosomes arrive at the poles and the microtubules disappear. The condensed chromatin expands and the nuclear envelope reappears. The cytoplasm divides, the cell membrane pinches inward ultimately producing two daughter cells (phase: Cytokinesis).

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