How are mitochondria similar to chloroplasts?
o both have many layers of membranes.
both contain molecules of chlorophyll.
both are found in the cells of consumers.
o both are needed for cells to store energy.

A. Both have many layers of membranes.  

Explanation:

Both mitochondria and chloroplasts are double membrane layered structure. They both have an outer membrane, inner membrane, and inter-membrane space. Mitochondria are present in cells of all eukaryotic organisms including plants. They are also called the power-house the cell as their main function is to generate ATP (adenosine triphosphate), the energy currency of the cell. The chloroplast is a chlorophyll-containing cell organelle usually present in green parts of the plants and in eukaryotic algae. Green plants are also called as autotrophs. They are mainly associated with photosynthesis that is, the synthesis of food with the help of sunlight. Thus, we can say that both are similar in having two layers of membranes.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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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.