Blog

In eukaryotes, RNA polymerase II is responsible for

These mutations are likely to have the consequences described Deamination of methylcytosine causes a single base deletion.

At present, global use of antibiotics in livestock production ranges from 9 mg per kg of animal in Norway to 318 mg per kg of animal in China.  In a recent issue of Science, three strategies are proposed to reduce global antibiotic use in livestock production, with the aim of reducing the rate that human pathogens gain antibiotic resistance. Two of these strategies are (1) limit use of antibiotics in livestock production to the present global average of 50 mg per kg of animal and (2) tax antibiotics used in livestock by 50% to discourage their use and raise funds for development of new antibiotics, better livestock production practices, etc. For each of these proposed methods, comment briefly on whether or not you think it is a good idea, and why.  If you think that you need more information to form an opinion, explain what this information is.

Polycistronic mRNAs are:

In partially diploid E. coli cells with the genotype: F’ i+ o- z+ y- a- / chromosome i- o+ z- y+ a+, which functional gene product(s) would be expressed at high level in the absence of both lactose and glucose?    β-galactosidase, permease, and transacetylase

During human development different forms of globin are present at different times because

Indicate whether the following statements about eukaryotic transcription factors (TF) are true or false Multiple transcription factor binding sites can be present in a single gene

These mutations are likely to have the consequences described Repair of a double-strand break by non-homologous end joining results in a small deletion  

We discussed a number of different enzymes that function in DNA replication.  For each function, match the name of the enzyme that performs the function.

During splicing of precursor mRNAs in mammalian cells, the first RNA cleavage step involves: