AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Scientists have concluded that repeated exposure to high doses of X-rays can lead to cancer in individuals. How does the X-ray exposure result in cancer?
A
by mutating the DNA
B
by damaging the mitochondria
C
by rupturing the plasma membrane
D
by damaging the ribosomes
Explanation: 

Detailed explanation-1: -But too much radiation can damage tissues by changing cell structure and damaging DNA. This can cause serious health problems, including cancer.

Detailed explanation-2: -Over time, there could be long-term effects of radiation exposure, such as a loss of white blood cells, a reduction in platelets, fertility problems, and changes in kidney function. There is also some correlation between excess radiation exposure and an increased risk of cancer.

Detailed explanation-3: -X-Rays and Other Sources of Radiation High-energy radiation, such as x-rays, gamma rays, alpha particles, beta particles, and neutrons, can damage DNA and cause cancer.

Detailed explanation-4: -This happens because ionizing radiation creates double-strand breaks in cells that allow excess DNA to enter. These extra pieces of DNA usually make their way to the nucleus, leading to cellular mutations.

Detailed explanation-5: -High energy (ionising) radiation can cause cancer if a person is exposed to a lot of it. This is because it can affect our cells and damage our DNA.

There is 1 question to complete.