DNA is composed of long strings of nucleic acid sequences, but not all of them code for proteins.But the ones that do are called genes.
Alleles are different versions of a certain gene.As an example, the gene that codes for blood type has 3 different alleles, A, B, an O. The genes that code for hair and eye color also have many different alleles.
Answer: RNA copies the DNA and builds a exact copy if it
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Explanation:
A dominant trait is a genetic trait which will manifest when only one copy of the gene is present, overriding another inherited gene coding for a different version of the trait.eg Dark hair. Whilst recessive traits are being or produced by a form of a gene whose effect can be hidden by a dominant gene and which can produce a noticeable effect only when two copies of the gene are present Blue eye color is a recessive trait.
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Answer: All are multicellular and eukaryotes.
