Which occurs during transcription?
dna is copied to create a second dna strand.
mrna codons and trna anticodons assemble amino acids.
dna is unzipped with the aid of dna polymerase.
mrna is synthesized from a strand of dna.

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.

Albinism is an inherited genetic disorder. explain what it is meant by inherited genetic disorder

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing