A mutation is a rare, accidental or induced modification of genetic information (DNA or RNA sequence) in the genome.
The consequences of a mutation vary according to the part of the genome affected. A mutation is said to be hereditary if the mutated genetic sequence is passed on to the next generation.
In multicellular animals, germline mutations can be transmitted to offspring, whereas somatic mutations do.
Somatic mutations do not affect cells intended for reproduction, so they are never hereditary:
* Post-zygotic mutations are the mutations that appear in the egg after fertilization. They are rarer and are expressed as mosaic in the individual concerned (the mutation will be present only in the daughter cells originating from the mutated embryonic cell).
* Mutations can appear throughout life on the DNA of any cell; they are then transmitted to the line of the daughter cells. These can, in some cases, become tumor cells and then form cancer.
Answer:
A considerable increase in phytoplankton populations in winter, and a greater increase in spring due to increase in light intensity.
Explanation:
Nitrogen and phosphorus are important nutrients required by phytoplankton populations. The growth of phytoplankton populations is dependent on the level of the availability of Nitrogen and Phosphorus in the presence of sunlight.
A rise in the aquatic coastal levels of nitrogen and phosphorus would result in a great increase in phytoplankton populations in spring, as stimulated by nutrient enrichment coupled with the availability of sunlight during spring. Phytoplankton populations would increase also in winter but not as high when compared to the rise in population in spring
Answer:
For example, cheetahs and lions both feed on the same prey; they compete for this resource. Therefore, if they live in the same area, one or both species will have less food. You might expect them to fight each other over food, but they do not
Explanation:
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DNA provides information at the species level.
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This glaucoma treatment may be used to create a new opening for the escape of aqueous humor from the anterior cavity of the eye, thus relieving intraocular pressure: trabeculectomy
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What does Glaucoma mean?</h3>
A collection of eye conditions known as glaucoma can result in vision loss and blindness by harming the optic nerve, a nerve located in the back of the eye. You may not notice the symptoms at first because they can appear gradually. Getting a thorough dilated eye exam is the only method to determine if you have glaucoma.
Glaucoma is a lifelong condition and should be referred to as a permanent disorder because it can be managed conservatively.
The procedure of treating glaucoma with surgery is known as trabeculectomy. Trabeculectomy is a filtering surgery where an ostium is created into the anterior chamber from underneath a partial thickness scleral flap to allow for aqueous flow out of the eye.
Learn more about Glaucoma here:
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