Which element is found in nucleic acids but not in amino acids? carbon hydrogen nitrogen phosphorus

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false

Which of the following explains why a tree is often used as a model to represent the principle of common descent