Explain how a zygote could end up with an extra chromosome.

Which process wears away tall sandstone rock formations due to wind? abrasion deflation impact plucking

By which process does "initiation" assist in cancer development? a. Enhancing the cell division of cells damaged by a carcinogen. b. Increasing the transformed cell's capacity for error-free DNA repair. c.

Which is the first era of Earth's history?

The human body decomposes differently depending on many factors including the environment. one guide on decomposition is given as casper's law (or ratio). based on casper's law, if all other factors are equal, which body will decompose the fastest?

Water is cooler near the poles and warmer near the equator. Movement of cooler and warmer water from these regions moderates the global climate. Which of the following describes the movement of water between the poles and the equator? A.

A blank reaction occurs when ionic or comment bond are broken and elements ions or simpler molecules are formed

The phase in which DNA copies itself

Which statement best describes the results of DNA A. Two identical DNA molecules B. one DNA molecule C. messenger RNA D. Two genetically different DNA molecules

How do breeders produce new genetic variations not found in nature?

What effect will MAO inhibitors (MAOIs) have on synaptic norepinephrine levels?