1.How does the size and number of cells depend on the size of the body?.2.how many cells does the average human have?3.How many pints of blood does the average human have?4.Under what circumstances are unspecialized cells found in the body?5.Identify the different phases and stages of the mitotic cell cycle.Explain […]

It is a great day at the lab. You have identified an E. coli F- strain that cannot grow without biotin (bio-). Unfortunately, the next day a rivaling postdoc “accidently” mixed your strain with another strain ‘X’ that cannot grow without arginine (arg-). a. You decide to separate the bio- […]

Q1. Each allele of single gene in a diploid cell during the G1 phase is present as part of a single (double-stranded) molecule. The Drosophila genome is approximately 150 Mb. which means that single haploid genome (one allele of each gene) would be 150,000,000 base pairs. Recalling that Avogadro’s number […]

1. In Grave’s Disease, hyperthyroidism is produced by an IgG that causes prolonged activation of the TSH receptors and results in excessive secretion of T3 and T4.  Explain why the negative feedback mechanism does not work in this disease. Reference an internet source (URL) or book. 2. Chromatographic assay reveals […]