Vasopressin and oxytocin each have a neurophysin associated with them in the granules in the neurons;

a) neurophysin I -oxytocin after secretion it function on breast

b) neurophysin II –vasopressin after secretion it function on kidney and blood vessels

c) neurophysin I -oxytocin after secretion it function on kidney and blood vessels

d) neurophysin II –vasopressin after secretion it function on breast

#Question id: 9619

#Unit 9. Diversity of Life Forms

A common ancestor for both species C and E could be at position number 

#Question id: 3851

#Unit 3. Fundamental Processes

Transcription is initiated at sites called:

#Question id: 19810

#Unit 12. Applied Biology

#Question id: 10664

#Unit 10. Ecological Principles

dN/dt = rN (K-N/K ) The logistic equation above is used to describe the rate of change of a population, N, with time, t, Where r is the intrinsic rate of increase and K is the carrying capacity. What is value of per capita growth rate when population size is 200 individuals? ( K= 400, r =.25)

#Question id: 797

#Unit 1. Molecules and their Interaction Relevant to Biology

With respect to microRNAs, which, if any, of the following statements, is FALSE?)

A. MicroRNA genes often occur in gene clusters within introns of protein-coding genes and are usually transcribed by RNA polymerase II.

B. Like an mRNA a miRNA is initially produced as a larger precursor RNA that, like the great majority of mRNAs, usually has a 5’ cap and a poly(A) tail.

C. MicroRNAs are produced by germ-line cells only.

D. A miRNA is initially produced as a duplex RNA but in order to work it needs to be converted into a single-strand RNA.

E. MicroRNAs usually work as transcription factors.