1.Type of fiber that slows gastric emptying and lowers blood glucose.

Polysassacharide

Soluble

HDL

Insoluble

2.What is meant by Amino Acid Sequence?

Number of side chains in the protein

Folding arrangement of the peptide chain

Order of amino acids in the peptide chain

Order of the essential amino acids in the protein

1.Cholesterol is:

essential for good health, but cannont be made by the body in sufficient amounts

found in foods of plant origin

precursor of vitamin C

found only in foods of animal origin

2.Hydrogenation is a process that increases the shelf life of foods by:

changing a solid to a liquid form

adding preservatives to the food

changes an unsaturated fat into a saturated one to stabilize the fat

increasing the amount of fat in the product

CF is an autosomal recessive condition. A population of 387 individuals has 7 people with CF. If we assume that the CF gene is in Hardy-Weinberg equilibrium

what is the estimated frequency of the CF allele? Give answer in decimal places

Describe how photosynthesis might play a direct role in the switch to flowering

11. The lacZ gene, responsible for lactose metabolism is an inducible gene regulated by a repressor protein. Answer the following questions regarding how this gene is regulated (3 pts each) a. What is the default setting in reference to the expression of lacZ? b. What role does lacI play in regulating the system? c. What happens when the system is exposed to lactose? d. What happens after the cell digests the lactose supply

Genetic Disorder: Argininosuccinic Aciduria (use for bottom section)

Mode of Inheritance: By an autosomal recessive trait

1. Photosynthetic organisms have mechanisms to protect the photosynthetic light reaction from environmental stresses. Take one or two examples for this, and explain the mechanism briefly.

2. Summarize how reactive oxygen species are generated in living cells and how they damage cell components and bio-molecules.

Which is not true for Type II photosensitization pathway?

Select one:

a. requires a donor molecule

b. involves transfer of excited spin-state energy from sensitizer to another molecule

c. does not need initial excitation of the photosensitizing molecule

d. requires a long-lived triplet excited state

Imagine you are a conservation manager in New York City, trying to protect an endangered squirrel. How would you design a reserve system that would help the squirrel, but also work in the context of the city? What are key things to consider, based on your knowledge of island biogeography?

The type of gene editing depicted in the movie Gattaca remains fictional, but we are closer and closer to that reality. Suppose this becomes a reality - how do you think that will affect evolution of humans? In what ways will gene editing as depicted in the movie affect human evolution? In your response, you need to reference components of the evolutionary theory we covered in class and make your argument based these concepts.

Assume that the gene trpA in an auxotrophic strain of E. coli is located at 27 minutes, whereas the gene pyrE is located at 81 minutes.
Present an experimental scheme that would allow you to convert one of the auxotrophic strains to a prototrophic strain.

A. F⁺ (auxotroph) × F⁻ (wild type)

B. Hfr (auxotroph) × F⁻ (auxotroph)  

C. Hfr (auxotroph) × F⁻ (wild type)

D. Hfr (wild type) × F⁻ (auxotroph)

E. F⁺ (wild type) × F⁻ (auxotroph)

The correct answer is D, but I don't understand why. Could someone explain this? Thank you!

A plant cell develops a mutation in its Rubisco gene that results in no production of the enzyme.

What would be the effect on the light reactions, on photosynthesis and on the organism as a whole?

Wildlife Species Description and Significance for Columbia Basin Pygmy Rabbit?

What activities of a eukaryotic cell would be affected by dysfunctional histone proteins that can’t properly condense the DNA into nucleosomes?

How would these activities be affected?

1. Sketch the elements of the trp operon, including the leader sequence.