Describe 3 causes of genetic variation in a population

Using the periodic table, determine which material is most likely a good conductor

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.

Nh3 +02-no + h20 is unbalanced what is the balanced equation