Drugs are substances that cause a change in a person’s physical, not mental, state. t f

Which represents a negative impact of technology

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.

Which material is commonly used as a culture medium for living cells