By 1999, after the clean water act had been passed in 1970 the percentage of us surface waters safe for fishing ans swimming increased from 36 percent to

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

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.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.