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You were so intrigued that you wanted to re-do the experiment at home to show your mom how evidence of chromosomal cross-overs can be seen in an ascus!You go to a nearby magical forest and just by luck come across anascoma. You crush it on a slide and put it […]

Three Hfr strains of E. coli are known to transfer their genetic material during conjugation in different sequences. Given the time of entry of the markers into the F- recipient, construct a genetic map, including time distances, which includes all of these markers, starting with C as number 1 and F as number […]

Read the following passage. In two (2) paragraphs write about the uses of radioactive isotopes possible damage to other macromolecules, such as cellular DNA, and weigh that risk against the potential therapeutic benefits of radiation therapy. Protons, neutrons, and electrons are responsible for the chemical properties of atoms. They also […]

1. Which members of tbacteria are used to prouce most of the antibiotics used in medicine today? A) cyanobacteria B) actinomycetes C) spirochaetes D) archaebacteria 2. Bacterial cells that have spherical shapes are given the name A) bacillus B) coccus C) spirillum D) none of these 3. A baceria that […]