What is genetic drift? 1. A mechanism for evolution in which a random DNA change occurs in a population 2. A mechanism for evolution in which a random event removes genes from a population

In which direction does the building of the new strand proceed?

DNA polymerases are processive, which means that they remain tightly associated with the template strand while moving rapidly and adding nucleotides to the growing daughter strand.

Each body cell in a cobra contains 38 chromosomes. How many chromosomes did the cobra receive from each of its parents? How many chromosomes are present in the cobra's sex cells? F

Continental crust is younger than oceanic crust

Whats the difference between a phenotype genotype and gametes

Without enzymes, what would happen to the rate of chemical reactions?

If a plant has both male and female reproductive organs it is: a) Monoecious. b) Dioecious.

Earth's tectonic plates A. move in similar ways today as they did in the past. B. can move up and down but not sideways. C. didn't start moving until the 21st Century. D. moved only during Earth's earliest period of history.

Why is taking vitamin c ineffective at enhancing iron absorption from standard iron supplements?

5. If the pressure exerted on a gas in a flexible container is increased does the density of the gas change? Why or why not? Explain your answer