Which of the following is not a difference between ionotropic and metatropic receptors?

A. Number of subunits

B. Presence of channels

C. Response Speed

D. Influx of ions

E. Neurotransmitter binding site

In an experiment, a student adds a G-protein antagonist that prevents the release of GDP from the alpha subunit, to a cell. What would be the expected effect?

A. increased availability of free GDP

B. Dissociation of the alpha subunit from the beta-gamma subunit

C. decreased flow of ions through the channel

D. Initiation of signaling cascade

E. No response to transmitter binding

Duplication of a genome once per cell cycle is, in essence, a biosynthetic process and, hence, demands the input of energy. Moreover, successful semi-conservative replication of the genomic DNA requires the action of many different components. Based on your understanding of the information and general principles covered in lecture, fill in the spaces provided with your responses to the questions asked about the ten proteins below.

Why is the incidence rate of melanoma on the rise and why do some melanoma drugs, like Nexavar, work poorly, but drugs like Keytruda and Tafinlar work significantly better?

Describe the role that mobile DNA elements may have played in evolution.

PLEASE cite source(s) and NO wikipedia. thank you!

A patient with recurrent Neisseria infections is evaluated for complement deficiency. C3, C4, and C5 levels are all within normal limits. CH50 values are below the reference range. What could explain these results?

A. Patient has a deficiency of C1

B. Patient has non-functioning C4

C. Patient has non-functioning C5

D. Patient has a deficiency of Factor D

why in lab do you usually fill the dissecting tray with about 2-4 cm of water?

"A key assumption is that crossing over is random. In which case, would you have an equal number of recombinants?"

Does this mean that each of the totals for the recombinant groups should all be relatively similar to each other if crossing over is actually random?

Which statement below best describes the difference between quantitative and discrete traits:

(a) discrete traits result from the action of many genes, while quantitative traits involve a single genetic locus

(b) discrete traits cannot be categorized into a few distinct phenotypes

(c) quantitative traits result from the action of many genes, while discrete traits involve a single genetic locus

(d) quantitative traits can be easily categorized into a few distinct phenotypes

Define, compare, and contrast direct and indirect competition. Provide an example of how each of these general phenomena shapes the distribution of organisms in shallow marine habitats