Question

What are allelesA: the decoders of a DNA messageB: two forms of single genesC: the basic unit of inheritance D: a measurable factor?

Answer 1

Your answer is B. two forms of single genes

Answer 2

B describes what an allele is correctly. An allele is a variation of a gene, like said by the second option.

Answer:

`\boxed{\bf~The~second~ooption~is~correct.}`

Hope it helped,

Happy homework/ study/ exam!