<em><u>Tay -sachs disease:
</u>it is a genetic disease due to autosomal disorder ..it causes nervous disability .. incubation period is from six months of age till the death and death occurs in 4 years of age..
<u>it is just prominent in the jews of Eastern ancestry ,, but form the options it is D )Jewish Americans ..</u></em>
The mass number is the sum of the number of protons and number of neutrons the atom has.
So, we can write the equation as:
x + 20 = 40
x = 20 neutrons.
Answer:
Cc Dd and ccdd
Explanation:
Due to technical problems, you will find the complete explanation in the attached file
Answer:
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