This is the normal nucleotide sequence on a dna strand: a—c—t—g—g—a—t what is a deletion?
a) a c t g c g a t
b) a c t g a t
c) a g t g g a t
d) a c u g g a u

Nucleic acid certain protein cell membranes certain carbohydrates

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures