Point mutations are caused by substances mutagens explain, Biology

Assignment Help:

Point mutations are often caused by substances called mutagens explain?

Point mutations are often caused by substances called mutagens. Base analogs, such as 5-bromouracil, a toxic drug used in cancer chemotherapy, are mutagens similar in structure to nucleotide bases. Other mutagens include coal tar dyes, which induce frame-shift mutations; ultraviolet light; atomic radiation; cigarette tars; some viruses, such as the genital herpes virus; and chronic irritants such as asbestos and silica. These mutagens are also referred to as carcinogens because they can lead to cancer, a condition in which cells fail to differentiate normally.

 


Related Discussions:- Point mutations are caused by substances mutagens explain

Meiosis comprises two separate divisions, All of the following make meiosis...

All of the following make meiosis different from mitosis; EXCEPT A. Meiosis comprises two separate divisions. B. Meiosis only occurs during embryonic development. C. Chromoso

Deficiency diseases-phosphorus deficiency, Phosphorus deficiency Defici...

Phosphorus deficiency Deficiency of phosphorus is usually primary and is widespread under natural conditions. It is characterized by pica, poor growth, infertility, and osteody

Explain alternate photosynthetic pathways, Explain Alternate Photosynthetic...

Explain Alternate Photosynthetic Pathways? An alternate photosynthetic pathway is the C4 pathway, where plants incorporate carbon into four-carbon compounds instead of 3PG. Thi

What is yellow fever, Q. What is yellow fever? The Yellow fever is a vi...

Q. What is yellow fever? The Yellow fever is a viral infection that occurs mainly in Central Africa and in the Amazon region of South America. It is prevented by vaccination an

How is opening and closing of stomata controlled, How is opening and closin...

How is opening and closing of stomata controlled? Describe a) Why is the length of a food chain in an ecosystem generally limited to 3 - 4 trophic levels? Explain with an examp

How aggregation occur in sickle-cell anemia, How does aggregation occur in ...

How does aggregation occur in sickle-cell anemia? Place the steps in the correct order from no aggregation to sickle red blood cell. Note that deoxyhemoglobin is generally in the T

Blood circulation and respiration, A person is declared to be dead upon the...

A person is declared to be dead upon the irreversible cessation of spontaneous body functions: brain activity, or blood circulation and respiration. However, only about 1% of a per

Feature of the hookworms related to the way they obtain food, Q. Which is t...

Q. Which is the typical feature of the hookworms related to the way they obtain food and explore the host? Both The Necator americanus and Ancylostoma duodenale have mouthparts

What is osmotic diarrhoea, Q. What is Osmotic diarrhoea? This kind of d...

Q. What is Osmotic diarrhoea? This kind of diarrhoea is caused by the presence of osmotically active substances in the intestinal tract, which in turn, favour the drawing of la

Physiology of the heart, The heart is the muscular pump that pushes blood t...

The heart is the muscular pump that pushes blood through the circulatory system. Each heartbeat can be felt as an arterial pulse. The heart valves when closed prevent the blood fro

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd