Compare the adaptations of plants and animals in lentic and lotic habitats.Thank you

Which has a wider array of structures: proteins, DNA, or RNA? Explain why.

In your own words, explain common functional relatedness, structural relatedness, and ancestral gene relatedness of conserved regions of proteins.

Explain why protein domains that contain structurally or functionally important amino acid sequences would be conserved between organisms that are very distantly related.

Why are cysteines important to the structure of a protein?

Explain the role of p53 and how its mutation leads to increased growth rate in the cell.

Which mutations most commonly lead to cancer – somatic cell or germ-line?

How do mutations lead to natural selection?

A strict anaerobe can gain its energy from:

Chemolithotropy

anaerobic respiration

glycolysis

fermentation

all are correct

Adam tells you that bacteria are so primitive and uninteresting. If it weren't for their disease-causing ability, we wouldn't care about them. Do you agree? Use three reasons to explain your position.

1. When a horse is mated with a donkey a mule is produced. The horse has 19 pairs of chromosomes in each cell; the jack has 33 pairs.

a) How many chromosomes are in each egg of the mare?

b) How many chromosomes are in each sperm of the jack?

c) How many chromosomes are in the cells of the mule?

d) Are the chromosomes of the mule in pairs?

e) Can the mule reproduce?

Signal Transduction:

A) Explain how growth factors, acting through the signal transduction pathway, regulate cell proliferation.  Names of specific proteins and their function must be given.

B) Give 2 specific examples of how an alteration in the signal transduction pathway can lead to cancer

Cell Cycle Regulation:

Describe the mechanism by which the cell cycle is regulated by mitogens. In your answer, be sure to include the following:

a) The phases of the cell cycle and protein whose concentrations vary during the cell cycle

b) The complexes formed by the proteins in (a) and the mechanisms by which they are regulated

c) The substrate of the complexes in (b) and its role in cell cycle control

d) Describe 2 ways in which the substrate in (c) can be inactivated to cause cancer

Describe both potential benefits and concerns with the genetic modification of organisms.

The flu infects millions of people in the US every year and kills about 50,000 people every year. What do you think about getting the flu vaccine every year?

1. Compare/contrast MHC-I and MHC-II proteins, including the types of cells that display each.

Mulitple Choice please answer all 3 no need to go in Depth

One mole (mol) of glucose (molecular mass = 180 daltons) is.

If the pH of a certain soda drink is 2, what is the hydrogen ion concentration in that drink?

Which chemical group is most likely responsible for an organic molecule behaving as a base?

All mutiple choice I need all 3 please

Water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecules by weak chemical bonds known as