Why might it be beneficial to express genes only when they are needed?

Amounts of which types of lipids must be listed on food labels? Answer monounsaturated fat trans fat cholesterol a and b b and cAmounts of which type of lipids must be listed on the food labels are b and c which is trans fat and cholesterol.

Even though DNA and messenger RNA share many characteristics, they are different in both structure and function. Describe how DNA and messenger RNA are different. Include in your response how they differ in: Location in the cell Function Structure

Fish respiratory systems exchange gas and receive oxygen at the gills. This oxygen then enters the blood stream and is pumped through the heart and back through the gills without first returning to the heart.

The resistance of cancer cells to EGF-R inhibition sometimes occurs as a result of? a) application of met b) down regulation of IGF-1R c) inhibition of Das signaling d) amplication of Gli2 e) all of the above

A glucose molecule is completely broken down in glycolysis and the Krebs cycle, but these two processes yield only a few ATPs.

A client with a myocardial infarction (MI) develops pulmonary crackles and dyspnea. A chest X-ray shows evidence of pulmonary edema. The specific type of MI the client had is most probably:

What conditions can lead to severe wild fires droughts and high winds high temerature and heavy rains heavy rains and high winds drought and low temeratures

Neptune has a diameter of 30,778 miles. What is its diameter in kilometers? (1 mile = 1.6 kilometers) A. 1,392,650 km B. 120,586 km C. 12,761 km D. 49,225 km

How much is the weight of a cell is water

What caused the mass extinction of the permian period