Outline the roles of double-stranded rna (dsrna) in eukaryotic gene regulation. select all that apply. (a) dsrna can inhibit gene expression by inhibition of transcription through heterochromatin formation.(b) dsrna can inhibit gene expression by inhibition of translation.(c) dsrna can inhibit gene expression by inhibition of replication.(d) dsrna can inhibit gene expression by destruction of mrna.(e) dsrna can inhibit gene expression by destruction of rrna.(f) dsrna can inhibit gene expression by inhibition of transcription through inhibitor synthesis.

Annuity payments are assumed to come at the end of each payment period (termed an ordinary annuity). however, an exception occurs when the annuity payments come at the beginning of each period (termed an annuity due). what is the future value of a 13-year annuity of $2,800 per period where payments come at the beginning of each period? the interest rate is 9 percent. use appendix c for an approximate answer, but calculate your final answer using the formula and financial calculator methods. to find the future value of an annuity due when using the appendix tables, add 1 to n and subtract 1 from the tabular value. for example, to find the future value of a $100 payment at the beginning of each period for five periods at 10 percent, go to appendix c for n = 6 and i = 10 percent. look up the value of 7.716 and subtract 1 from it for an answer of 6.716 or $671.60 ($100 × 6.716)

What is a market? a. a system that allows people or companies to buy and sell products and services b. the number of companies willing to manufacture a specific product c. the ability to buy production materials in large quantities and save on costs d. a product's ability to satisfy a consumer

Atennis club charges a monthly membership fee of $150 and charges it members $10 per hour to use a court. there's also $500 fee to become a member. stella joined the tennis club last spring, and she has been a member for 5 months. she has been playing 10 hours of tennis each month. stella values an hour of her time at $20. during a boring afternoon meeting, stella thinks about reserving a court to work on her serve for an hour tonight. what's stella's opportunity cost of working on her serve for an hour?