Suppose we start with a single bacterial cell who's DNA is labeled with 15N. We allow the cell to grow and divide for 7 hours, which is ~21 generations in normal 14N containing media. This means there will be approximately 2 million cells in our final culture. Assume no cells die during this time, How many cells will contain 15N labeled DNA

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?