An antigen
a. is a foreign molecule that evokes a specific response by a lymphocyte
b. is a protein attacked by an invading microorganism
c. induces development of white blood cells in the bone marrow could be an invading bacterium
d. is a protein molecule that defend the body against disease

A3-year-old child with nephrotic syndrome has been receiving prednisone for 1 week. the nurse reviews the child's progress record and determines that the medication has been effective. what information supports this conclusion? select all that apply.

In sweet pea, gene c is responsible for color production and gene p is responsible for the purple color pigment. both of them are located on two different loci on different chromosomes. the flowers will be purple only when the plant has the genotypes as c_p_. no color will be produced with genotypes: ccpp, ccpp, ccpp, ccpp. thus, gene c controls the expression of gene p. what pattern of inheritance is exhibited here? a. pleiotropy b. epistasis c. multiple alleles

What are the proteins in connectivity tissues of your foot examples of?