Which three of the following statements is correct on how the mass of a single neutron, proton, and electron relate to each other?

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun