Is a technique that involves putting a healthy copy of a gene into cells that have a defective copy of the same gene. a) gene therapy b) binary fission c) tumor necrosis d) dna fingerprinting

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

Why do we perceive objects as retaining their brightness under different lighting levels?

Which is one example of a phenotypic change that is not genetic