Which of the following is true of DNA?

A. There are six nitrogenous bases involved.

B. Cytosine can pair with guanine and adenine.

C. There are four nitrogenous bases involved.

D. Adenine always pairs with guanine.

Cholesterol is repelled by water and can be found between the layers of the phospholipids in the plasma membrane. What can be concluded from this information? A. A high cholesterol diet should be avoided. B. Cholesterol is nonpolar. C.

Which two properties fluctuate in a salt marsh? A. temperature and salinity B. water level and salinity C. temperature and density Which marine life zones are warm, well lit, and have lots of marine life? A. abyssal & hadal B.

Which example is a long-term environmental change? La Niña El Niño climate change small asteroid impact

Why denatured sucrase was used as a control

What name is given to the monomers or proteins?

How many oxygen molecules (O₂) are required each time a molecule of glucose (C₆H₁₂O₆) is completely oxidized to carbon dioxide and water via aerobic respiration,? A) 1 B) 3 C) 6 D) 12 E) 30

Which of the following sentences are correct? (1) for millions of years dinosaurs ruled the earth; they roamed freely over the land and through the oceans.

2. A flower arranger is growing some flowers in a garden. He has seeds for red, and seeds for pink plants. Both colours are found or the same allele as each other. Red is the dominant colour, while pink is recessive.

The size of a maternal (mother) or paternal (father) chromosome dictates which side of the cell equator it will gravitate towards during metaphase I. True False

What kind of doctor is neil shubin