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BIO 210 final exam genetics-with 100% verified solutions-posted in 2023
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BIO 210 final exam genetics-with 100% verified solutions-posted in 2023
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BIO 210 final exam genetics-with 100% verified solutions-posted in 2023 Explain why Darwin’s theory of natural selection leads to survival of the fittest offspring. Discuss what this means for future generations. Your Answer: Darwins theory of natural selection leads to survival of the fittest offspring due to the conditions the offspring are living in. In cold climates, the offspring with the thickest fur will survive. In humans, our ancestors who were fast, and strong had a better chance of survival by the ability to hunt for food, create shelter, and fight off predators. This can change the genetic makeup for future generations, as a certain type of offspring will be surviving and therefore reproducing. Name 2 types of animal models that are used for genetics research. Describe one trait that each model possesses that makes it a useful genetic tool. Your Answer: The first type of animal model that is used in genetics research is a mouse, which has a similar genome to a human, and a simmilar immune system. The second type is a worm, which serves as a model of the nervous sytem, and has a body that has a "see through" effect which makes it easy to study. Are preformation and epigenesis the same thing? Explain why or why not. Your Answer: Preformation was the belief that the fetus (homoculus) was inside of the body formed, until it grew to a certain size to come out. Epigenesis is the formation of the fetus, as it goes through different stages inside of the womb. Whose experiment on pea plants put him at the forefront of the discovery of modern genetics? - Gregor mandel The chromosomal theory of inheritance states that: Genes, contributed from each parent, are carried on chromosomes. are the basic building blocks of DNA. Your Answer: Nucleotides: A, T, G, C Explain how the use of biotechnology has contributed to modern agriculture. Your Answer: The use of biotechnology has contributed to modern agriculture by incorporating them in the foods we eat through transgenic crops. Biotechnology has been an aid in growing crops and producing them. The theory of posits that living things can spontaneously generate from nonliving things. Your Answer: Spontaneous discovery Natural selection posits that organisms that have the most advantageous characteristics will survive their environment. Do humans have the same selective pressures for natural selection that their animal counterparts do? Are humans still evolving? Your Answer: Nowadays, humans do not have the same selective pressures for natural selection. In our modern world, things are a lot easier and we no longer need to do certain things for survival as we used to. Animals have to hunt, and survive on a daily basis, and it is important for them to be strong, fast, and adaptable to their environemnts. As our world continues to evolve, humans evolve with it. Cell theory was introduced by: Matthias Schleiden and Theodor Schwann The publication Origin of Species was written by: Charles Darwin Propose examples of certain traits that could benefit an animal that lives in a forested environment. Your Answer: Animal that lives in a forested environment would have to have traits such as: being fast to be able to hunt, ability to climb since there are many trees and plants. Have certain enzymes to be able to digest some of the food in the forsest such as certain fruits or plants. Be able to adapt to the weather, and have the proper coating (fur, skin, etc.) to live in hot and humid conditions. Also having the ability to camoflouge when hiding from predators. The hypothesized that heredity and development depend on the passing of genetic information via that are contained within chromosomes. Chromosomal theory of inheritance; genes The number of total chromosomes in a normal human chromosome set is____. Chromosomes exist in matched numbers of____. 46 total chromosomes, and exist in a matched numbers of 2 If the normal color of a fruit fly is red, and a mutation causes a white eye, then the red-eyed gene is referred to as the _____ gene, and the white-eyes are caused by a mutant ____ _. Wild gene, mutant allele Name the four nucleotides that make up DNA and indicate which bases pair together. Adenine and thymine pair together, and guanosine and cytosine pair together.Dit zijn jouw voordelen als je samenvattingen koopt bij Stuvia:
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