What living thing is homeostasis responsible for

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

What organelle other than the nucleus houses dna in a eukaryotic cell?

Ascientific idea becomes valid when it is what?