This is the normal nucleotide sequence on a DNA strand:

A-C-T-G-G-A-T

What is a substitution?

1.) A-C-T-G-C-G-A-T

2.) A-C-T-G-A-T

3.) A-G-T-G-G-A-T

4.) A-C-U-G-G-A-U

The body of a man is lying in a pool of blood near the refrigerator in his kitchen. There is blood spatter on the refrigerator, its corresponding wall, and an adjacent wall.

Some molecules that are covalently bonded do not have a difference in charge across the molecule. These molecules are referred to as nonpolar. What arrangement of electrons would result in a nonpolar molecule?

True or false? A weather station gathers data about weather conditions for a specific spot on land.

On a weekend trip to Winnipeg (Canada) you see that gasoline sells for 103.6 cents Cnd per liter. What is the cost of gasoline in US dollars per gallon? Should you fill up in Winnipeg or wait until you get back to Pembina?

An ideal gas is in equilibrium at initial state with temperature T=137oC, pressure P = 0.75Pa and volume V = 0.75 m3.

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.

A chemist must prepare of aqueous potassium permanganate working solution. He'll do this by pouring out some aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water.

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?