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C.G. is a 69-year-old male with a history of right head and neck cancer that you have been following for one year. The carcinoma was initially localized to the head and neck-specifically at the left lingual tonsil region and went on to complete a total of 6 weeks of radiation […]

1. When does crossing overoccur? A. interphase prior to meiosisB.  prophase II of meiosisC. Anytime at random during divisionD. Anytie during the second meiotic division.E. Prophase I of meiosis. 2. The closer two genes are togetheron a chromsome, A. the more likely they are to be epistatic.B. the less likely […]

A) Microfilaments are composed of globular subunits of the protein actin. In the presence of ATP actin polymerizes to form helical filaments. Briefly describe the role of ATP and how it is necessary for microfilaments assembly.B) All of the motors known to operate in conjunction with actin filaments are members […]

1. A diploid somatic cell from a new species of octopus has a totalof 62 chromosomes (2n = 62). Answer the following questions: A. How many different chromosomes (i.e. carrying differentgenes) does it have?B. How many molecules of DNA are in the nucleus of its somaticcells in G1?C. How many […]