For a science fair project, two students decided to repeat the hershey and chase experiment, with modifications. they decided to radioactively label the nitrogen of the dna, rather than the phosphate. they reasoned that each nucleotide has only one phosphate and two to five nitrogen atoms. thus, labeling the nitrogen atoms would provide a stronger signal than labeling the phosphates. why won't this experiment work?
a. radioactive nitrogen has a half-life of 100,000 years, and the material would be too dangerous for too long.
b. there is no radioactive isotope of nitrogen.
c. although there are more nitrogens in a nucleotide, labeled phosphates actually have 16 extra neutrons; therefore, they are more radioactive.
d. amino acids (and thus proteins) also have nitrogen atoms; thus, the radioactivity would not distinguish between dna and proteins.

Part e - sequence of metabolic processes each of the different cellular metabolic pathways occurs in a specific order. consider aerobic cellular metabolism from the beginning to end. what is the sequential order of the metabolic processes that starts with glucose and results in the production of carbon dioxide, water, and atp? put the following in the correct sequential order. rank from earliest to latest. to rank items as equivalent, overlap them. view available hint(s) acetyl coaglycolysiscitric acid cycle pyruvate finishstartstart background image electron transport chain background image finish background image submit cellular metabolism is often expressed as an equation. this equation puts into perspective, on a general scale, the substances needed to start cellular metabolism and the products that come out of it. the equation represents the overall product yield after every step of cellular metabolism is complete (i.e., glycolysis through the electron transport system). in this part of the tutorial you task will be to put together the equation that represents cellular metabolism. you will also learn the products that result from each metabolic pathway and the role that some these products play in the production of atp.

What is a sex-linked genetic disorder that disrupts the blood's ability to clot? a.achondroplasia b.huntington's disease c.hemophilia d.albinism

What two factors does carrying capacity compare? population size and resource use population growth and resource availability resource use and time population size and time