Which of the following statements correctly explains the fact that all seven of the pea plant traits studied by mendel obeyed the principle of independent assortment?
a) all of the genes controlling the traits behaved as if they were on different chromosomes.
b) all of the genes controlling the traits were located on the same chromosome.
c) none of the traits obeyed the law of segregation.
d) the diploid number of chromosomes in the pea plants was seven.

Option A

Explanation:

Mendel used many the same pea plants for the description of many characters independently in those pea plants only.

The Principal of Independent Assortment states how different genes express themselves independently when reproductive cells develop.

This was first observed by Mendel by his experiments. Every character of the pea plants that he used appeared independently.None of the two characters got mixed with one another.

Hence, the correct answer is option A

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.