An individual has two copies of a sickle-cell allele of hemoglobin in which a (historical) mutation replaced the underlined A (see above) with a T. Explain how this change in genotype causes a change in phenotype. For full credit, address (1) the sequence of the protein, (2) the three-dimensional structure of the protein, and (3) the consequences for the red blood cells and the individual.

What feature of cell theory is best demonstrated in the image

What is the function of nucleic acids

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.