A geneticist cytologically examined a corn plant and found that it had one member of chromosome #10 possessing a very large terminal knob and the other member lacking this knob. A knob is a darkly staining enlarged region on a chromosome. When the geneticist looked at the much larger chromosome #1, it was observed that ONLY 1 chromosome of this pair possessed a terminal knob. a) In regard to these two heteromorphic chromosome pairs, draw all possible types of meiotic products that can be produced by this plant.

b) Can all these types of gametes be produced by one meiosis? Why or why not?

Please, please I need help with this URGENTLY​

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

Does masterbation affect height growth or loss of growth hormone?

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.