You have a plant with yellow seeds, which express a dominant phenotype. how would you determine the plant's genotype? . . conduct a punnett square with a purebred recessive plant.. conduct a test cross with a purebred recessive plant.. conduct a test cross with a purebred dominant plant.. conduct a test cross with a hybrid plant.

If it displays the dominant genotype, we can assume that this plant would have a heterozygous (hybrid) genotype, i.e.

With a purebred recessive plant, the geneotypes would be 50% Bb and 50% bb.

With a purebred dominant plant, the genetpyes would be 50% BB and 50% Bb.

With a heterozygous (hybrid) plant, the genotypes would be 25% BB, 50% Bb and 25% bb.

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.