Men who develop testicular cancer usually have the affected testicle surgically removed. Obviously the removal of one testicle reduces blood levels of testosterone. However, over the course of several months, levels of testosterone return to normal. In addition, the size of the remaining testicle typically increases to almost twice its original size. Explain these results in terms of the mechanisms regulating testosterone secretion by the testicles.

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

What do all of the above organisms have in common