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Q1. A population of 200 healthy fishermen was followed for development of Schistosomiasis. After being followed for 4 years 20 developed Schistosomiasis. 30 fishermen were followed for 6 years and they left for other jobs. The remaining who never developed Schistosomiasis was followed for 8 years. a. compute the number […]

While studying the Michaelis – Menton kinetics of enzymes in the TCA cycle, the synthetic hydrocarbon malonate was shown to act as a competitive inhibitor of one of the enzymes. At first, the identity of the inhibited enzyme was unknown but further tests revealed that this inhibited TCA enzyme was […]

In cats, the X-linked allele O converts the black pigment found in the fur into an orange pigment. Heterozygous females are mosaics of orange and black pigmented fur. The autosomal dominant allele W prevents the deposition of any pigment at all in the fur. A white female cat is mated […]

Two immune system questions: Activated T-helper cells aid in humoral immune responses by releasing cytokines which promote antibody production, phagocytosis, neutralization and apoptosis. Which parts of this statement are false and why? I know cytokines activate B cells and cytotoxic T cells, and the interferons are cytokines as well. Membrane […]