The Golgi apparatus is primarily involved in

Select one:

a. Protein sorting/routing

b. Lysosome reabsorption

c. Protein catabolism

d. Protein synthesis

e. mRNA processing

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Which of the following would make a plasma membrane more fluid at room temperature?

Select one:

a. All of these factors would increase plasma membrane fluidity at room temperature

b. Saturation of fatty acyl chains

c. Presence of double bonds in the fatty acyl chains

d. Presence of cholesterol

e. Long of fatty acyl chains

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You would expect the cell membranes of an animal that lives in a very cold climate to have a higher proportion of

Select one:

a. Approximately equal amounts of saturated and unsaturated phospholipids

b. Mostly saturated phospholipids

c. Mostly unsaturated phospholipids

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In lungs, O2 moves freely across the cell membrane of alveoli, down its concentration gradient, and without the requirement of any carrier protein or any input of external energy. This is an example of

Select one:

a. Passive diffusion

b. Facilitated diffusion

c. Osmosis

d. Cotransport

e. Active transport

Explain how resource partitioning may lead to the following two processes :

• modification of a population's realized niche
• speciation.

1. How does HIV infection affect the body?

2. How is HIV transmitted, diagnosed and treated.

3. What are the symptoms, risk factors, and treatment for the other major Sexually Transmitted Infections (STIs)/Sexually Transmitted Diseases (STDs)?

4. What are the strategies for protecting yourself against STIs/STDs?

Considering the two types of nucleic acids, how does RNA differ from DNA?

a) RNA is double-stranded; DNA is single-stranded.

b) RNA is a polymer of amino acids; DNA is a polymer of nucleotides.

c) In RNA G pairs with T; in DNA G pairs with C.

d) RNA contains uracil; DNA contains thymine.

Describe a viral infection (cite your sources).

A species of grasshopper lives for only one year, but reproduces multiple times in its breeding season. It is a small, short-lived species that grows quickly and reaches sexual maturity early, and produces many, small offspring. Based on this information, which of the following statements is CORRECT? Select ALL correct answers.

Which of the following statements is INCORRECT regarding life history traits?

next to each statement it is true or false

The 1.-An enzyme can only function once, because it is changed by the chemical reaction. [ Select ]

2.- An enzyme's function depends on its three-dimensional shape. [ Select ]

3.- Each enzyme can work with a broad range of substrates. [ Select ]

4. An enzyme inhibitor can prevent a substrate from binding to the active site. [ Select ]

1. How might a skew in the age distribution of one species impact a whole community?

2. What are some benefits and drawbacks of generational overlap within species?

Identify three environmental problems-issues in California and provide the framework that you would use to resolve the three environmental problems-issues.

During which phase of growth would a primary metabolite be produced?

lag phase

exponential phase

stationary phase

death phase

all are correct

There have been close to 50 different types of bias identified in epidemiological practice and research, but nearly all can be broken down into two major bias categories: Information bias and selection bias. Select one of these biases and discuss the origin of this bias, common mistakes in epidemiological studies that create this bias, and methods to help reduce the referenced bias in epidemiological research and practice.

The greenhouse effect causes an increase in global temperatures, which has contributed to global climate change. This temperature increase is due primarily to:

a) CO₂​ and other greenhouse gases allowing more solar radiation to penetrate Earth's surface

b) CO₂​ and other greenhouse gases slowing the escape of heat from Earth

c) the loss of ozone that trapped cooling UV radiation in the atmosphere

d) CO₂ and other greenhouse gases slowing the escape of UV radiation from Earth

Assignment #10 Chapters 11 & 12

1. The mother of a child who was just diagnosed with type 1 diabetes turns to the child’s father and says, “This is all your fault. Your father has type 2 diabetes.” Is she correct in her assumption that the child inherited diabetes from his father’s family? Explain your response

2. Why sickle cell disease/trait and cystic fibrosis are considered probable genetic evolutionary disorders?

3. Why is carrier status for Duchenne muscular dystrophy (DMD) usually not transmitted from affected fathers to daughters, even though this disorder has an X-linked transmission pattern

4. Why is there such a high rate of spontaneous mutation among the genes responsible for classic hemophilia, Duchenne muscular dystrophy, and achondroplasia? 5. Edward has diabetes mellitus type 2 (DM type 2).He is struggling to maintain his blood sugar within normal limits. Edward also suffers from obesity and has been unable to control his weight with diet and exercise. He asks you if his problem is due to genetics. He points out that his mother also had type 2 diabetes and was obese. He also asks why his identical twin brother, Edgar, does not have diabetes even though they share genes and grew up in the same environment.

A. What would you tell Edward about the genetics of DM type 2?

B. What will you tell Edward about the relationship between DM type 2 and obesity? What will you tell Edward about the relationship between DM type 2 and obesity?

C. What do you think about genetic testing for DM type 2 in young? Is this likely to be successful at identifying a genetic cause?

D. Would genetic counseling benefit Edward and his family?