In your first meeting as a conservation manager at a global conservation NGO, your colleagues present the plan for a new campaign focused on conservation in two of the world’s ‘mega-diverse’ (i.e. most species rich) countries. a) What are the merits of their proposal? (2 pts), b) What two other factors do you urge them to consider, and in taking these factors into consideration how might the plan be modified? (3 pts) Explain your answers. It is not sufficient to simply list terms we discussed in class. You must demonstrate understanding of the concepts (refer back to the readings).

The Stability of the DNA double helix depends significantly on:

I. Hydrogen bonds between phosphate groups

II. Stacking interactions

III. Hydrophobic exclusion

IV. Calcium Ions

A) I, II, III, IV

B) II, IV

C) I, III

D) II, III

Please explain the reasoning behind the answer

Most antimicrobials that arrest protein function are non-selective as to the microbes they affect. Why would this be? What would the effect of these agents be on human skin or tissue, if applied there?

After performing a spread plate method on a bacterial specimen, the culture was incubated for 48 hours at 37°C. Upon viewing the plate, there was heavy growth with no isolated colonies. Please discuss the errors in the procedure that could have produced this result.

power point presentation on malaria

Sterility is associated with loss of function (LOF) at a gene Z. The gene has 5000 bases where LOF mutations can occur. Assuming the human mutation rate is 2x10^-8 per generation. Homozygotes for LOF alleles at Z are sterile, and heterozygotes have mild sterility issues. The heterozygotes for LOF alleles at Z have 20% fewer children than an average individual I the population, but suffer no other ill effects. A) What is the frequency of the Z allele under mutation-selection balance? B) What proportion of the individuals in the population are sterile due to being homozygous for a LOF mutation at Z?

For each enzyme, state the kind of ribosome on which it’s made (cytosolic or RER). If it’s made on a RER ribosome, state the final destination of the protein in the endomembrane system:

- Glucose Na+ symporter
- Actin, which polymerizes into actin filaments, aka microfilaments
- A mature acid hydrolase that will function as an intracellular peptidase

Thank you!

Recognize the structure of the heme group and know its purpose in hemoglobin or myoglobin

List the major molecules that make up typical Gram-positive and Gram-negative cell walls and note which molecules are unique to each type of cell wall. How do these molecules contribute to the functions of the cell wall?

Core concepts of population health emerged in 18th and 19th century Europe, yet soon came to circulate around the globe. This circulation produced the field we know today as global health or global population health. Please identify at least 2 continuities in population health debates across time and place and at least 1 aspect of population health thought or practice that changed as public health ideas were brought into new places and new political and social arrangements.

You are asked to draft a sustainability plan for for your community. Identify and describe five main challenges which you would aim to tackle in this plan, focusing mainly on energy issues and their tangents, in order of importance, and why.

A protein retained on an affinity chromatography column is usually eluted off the column by (circle the correct answer) A. increasing the salt concentration in the buffer B. changing the temperature of the elution buffer. C. allowing the retained protein to naturally come off the column after the non-specifically bound proteins have first passed through the resin. D. adding the protein's free ligand.

. a) In each of the following changes indicate which are age related and which are age associated changes and age associated diseases. Us abbr AR,AS, ASD. b) Also indicate under each if the degree of age related changes could become age associated under the influence of life style ( indicate by yes if it can or no it does not)

a. Reduced sex drive in females

b. wrinkling of skin

c. acute dementia

d. impotent in males

c. hypertension

d. presbyopia

e. Ectropion

f. vascular dementia

g. bone loss in females

h. bone loss in males

i. hypothermia

j. osteoarthritis

m. ADRs to medication

n. loss of muscle mass

o. Parkinson’s diseases

p. reduced short-term memory

q. multi-infarction dementia

r. incontinence

s. dysphagia

t. reduced time between erection (males)

2. a) explain which of the theories of aging explains the following age related changes, b) indicate if each theory is extrinsic or intrinsic

a. loss of elasticity of lungs reducing vital capacity

b. The loss of functional cells to replace those that are dying or damage

c. decrease in bone density

d. arteriosclerosis

e. osteoporosis - female

f. arthritis

3. Explain, from question 2 above, if these theories totally explain aging.

From Darwin to DNA: The Genetic Basis of Color Adaptations by Hopi Hoekstra ( Article Link: https://nescent.org/media/NABT2010/pdf/Hoekstra.pdf)

How can Darwin be linked to Francis Crick, the co-recipient of the Nobel Prize for modeling the three-dimensional structure of DNA?

Use Figure 1 to distinguish between Proximate and Ultimate questions in Biology.

Pick a question from Box 1 that is most interesting to you. State the question and explain your

interest.

What were the 3 main findings from the study of the adaptive significance of color variation?

What is the difference between forward and reverse genetics?

What is the role of Mc1r in determining pigmentation? What is the prediction for Mc1r activity

in beach mice?

Why is Figure 6 C the accepted cladogram including multiple origins of light color?

Is the mechanism (gene mutation) leading to light fur color the same for the Gulf and Atlantic

coast species?

What point was the author making when discussing wooly mammoths, fence lizards and the

snow goose (Figure 7)?

What did you find most interesting about the article?

Answer those question, please.