Heterozygous- a certain gene that can carry two different alleles
Homozygous- a certain gene that carries two copies of the same alleles
Answer:
A nucleus is the membrane-bound organelle, and it has the chromosomes, and genes are made up from DNA.
Explanation:
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Under development of the brain.
There are no answer choices, but I know the mitochondria create energy for the cell.
Perspiration
please vote my answer brainliest. thanks!