Answer:
B. DR, Dr, Rd, dr
Explanation:
This question involves two genes. Alleles D and R are dominant over alleles d and r. These two genes obey the law of independent assortment as proposed by Gregor Mendel.
Based on the question, a genotype RrDd will produce the following combination of gametes following the process of meiosis:
DR, Dr, dR, dr
Answer:
During crossing over, part of one chromosome is exchanged with another. The result is a hybrid chromosome with a unique pattern of genetic material. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.
Actually depends on the species. Take snakes for example. They quickly thrived here in america because they had similar environements over in europe. The warm climate here in florida is perfect for them. They like the heat of the sun the dense foliage and many other good qualities here. Also their are other places that are good as long as they are hot have water and prey and a nice hole they can sleep in they can survive making them very adaptable.
