Mrs. Schwieterman
Biology
20 January 2016
Retinoblastoma Every single day, our cells are duplicating and replacing worn out cells. They are able to do this through the cell cycle in which genetic information is dulicated and split up forming new cells. During the cycle there are various checkpoints monitering the progress of the cell. If there were to be a mutation, the checkpoints could destroy the cell. However, like most things, there are a few cells thaat contain mutations that pass through the checkpoints. The cells who pass through and reproduce uncontrolably are called cancer. Cancer cells crowd out healthy cells making it harder to or unable to function. An eye cancer, for example, may result in the loss of vision in the affected eye.
Retinoblastoma is a rare cancer that forms on the retina of the eye after a genetic mutation occurs in retina nerves (National Cancer Istitute). These mutations can be spotanious or passed down through the genes given to us by our parents (KidsHealth). Twenty percent of cell mutations causing retinoblastoma are hereditary (Geneticts Home Refrence). Only one parent needs to pass on a sigle copy of the mutated gene to increase the risk of their offspring devloping retinoblastoma. …show more content…
Retinoblastoma is a cancer that has a few symptoms and many of which can be taken for other problems within your eye. Redness of the sclera, irritation, swelling aroud the eye, persistant eye pain, blindness, poor vision, crossed eyes, and eyes that look different ways are the most common symptoms. The most notable sign of retinoblastoma is the pupil turing white when a bright light is shone in it. Printing of a picture after it is taken with a flash is a common way of finding out that someone has retinoblastoma. The pupil is transparent so a bright light will allow an abnormality such as a tumor to be seen in the back of the eye (Overview; Geneticts Home
Biology
20 January 2016
Retinoblastoma Every single day, our cells are duplicating and replacing worn out cells. They are able to do this through the cell cycle in which genetic information is dulicated and split up forming new cells. During the cycle there are various checkpoints monitering the progress of the cell. If there were to be a mutation, the checkpoints could destroy the cell. However, like most things, there are a few cells thaat contain mutations that pass through the checkpoints. The cells who pass through and reproduce uncontrolably are called cancer. Cancer cells crowd out healthy cells making it harder to or unable to function. An eye cancer, for example, may result in the loss of vision in the affected eye.
Retinoblastoma is a rare cancer that forms on the retina of the eye after a genetic mutation occurs in retina nerves (National Cancer Istitute). These mutations can be spotanious or passed down through the genes given to us by our parents (KidsHealth). Twenty percent of cell mutations causing retinoblastoma are hereditary (Geneticts Home Refrence). Only one parent needs to pass on a sigle copy of the mutated gene to increase the risk of their offspring devloping retinoblastoma. …show more content…
Retinoblastoma is a cancer that has a few symptoms and many of which can be taken for other problems within your eye. Redness of the sclera, irritation, swelling aroud the eye, persistant eye pain, blindness, poor vision, crossed eyes, and eyes that look different ways are the most common symptoms. The most notable sign of retinoblastoma is the pupil turing white when a bright light is shone in it. Printing of a picture after it is taken with a flash is a common way of finding out that someone has retinoblastoma. The pupil is transparent so a bright light will allow an abnormality such as a tumor to be seen in the back of the eye (Overview; Geneticts Home