Sedimentary rocks can form at the earth's surface or within the earth.

true
false

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 is the number of phosphates in an atp molecule

2polnis which of the following is an advantage of an in vitro experiment?me