Which of the following is an example of gene splicing? A. a segment of human DNA is inserted into the DNA sequence of a bacterium B. a genetically identical copy of an entire organism is produced through cloning C. two human chromosomes pair up during meiosis and exchange parts of their DNA D. a mutation that occurs during meiosis results in a chromosomal abnormality

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?