Draw a pedigree using the following information. (Hint: Draw a Punnett square for the first generation parents!): i. A man with hemophilia married a woman without it. ii. They had 2 daughters and 2 sons iii. The first daughter had a son with hemophilia.​

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

In which state was more than 100 billion tons of coal mined in 2005?

What does the positioning of transcription factors determine?