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Biology Fundamentals: Evolution, Genetics, and Cellular Processes

Overview of fundamental topics in evolution, genetics, and cellular biology.

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    Biology Fundamentals: Evolution, Genetics, and Cellular Processes Question 1 (1 point) Which statement about evolution is FALSE? Question 1 options: According to evolutionary theory, you are related to a bacterium, to a yeast cell, to a snake, and to a whale. In fact, you are related to every species now alive on Earth, and to fossil species like dinosaurs as well. Natural selection acts on genetic differences within a population to cause evolution. Individuals do not evolve. Natural selection is about slow but steady progress. Through it, populations constantly get better - adapted. When this process is completed for all populations, evolution will come to a stop. Evolution occurs constantly, without end; there is no endpoint in evolution. Save Question 2 (1 point) Negatively charged particles are found where in an atom? Question 2 options: In the nucleus In a single layer outside the nucleus In multiple layers outside the nucleus Both inside and outside the nucleus Save Question 3 (1 point)

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    You have a solution that has a pH of 8 and need it to be pH 5. What do you do? Question 3 options: Add water Add a base Add an acid Add a buffer Save Question 4 (1 point) What characteristic of carbon makes it a good backbone for creating diverse and durable molecules? Question 4 options: Carbon is a large atom. Carbon forms four covalent bonds. Carbon forms hydrogen bonds. All of the above Save Question 5 (1 point) Which of the following structures can be found together in eukaryotic cells? Question 5 options: cytoplasm and ribosomes

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    cytoplasm and plasma membrane DNA and ribosomes ribosomes and endoplasmic reticulum Save Question 6 (1 point) Which of the following reactions or pathways is catabolic? Question 6 options: Breaking down ATP into ADP and phosphate. Making starch from many glucose molecules. Photosynthesis: which builds glucose from carbon dioxide using energy from light. Making ATP from ADP and Phosphate. Save Question 7 (1 point) In a metabolic pathway, a typical control mechanism is to have: ________ Question 7 options: the final product have no effect on the enzyme responsible for its own production. the final product inhibit an early step. a reactant inhibit a late step. a lack of reactant stimulate the pathway. Save Question 8 (1 point)

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    Mitosis results in ______ cells and meiosis results in _______ cells. Question 8 options: haploid, diploid diploid, haploid diploid, diploid haploid, haploid Save Question 9 (1 point) In beans yellow (Y) is dominant to green (y) and smooth (S) is dominant to wrinkled (s). What are the possible genotypes for the offspring of the following cross: YySS and YYSs. Question 9 options: YYSS, YYss, yySS, yyss YS, yS, YS, yS Yy, SS, YY, Ss YYSS, YySS, YYSs, YySs Save Question 10 (1 point) Red rose color is incompletely dominant over white rose color. If a red rose is crossed with a pink rose, what percentage of the offspring will be pink? Question 10 options:

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    100 75 50 25 Save Question 11 (1 point) One of the products of cellular respiration is ________. Question 11 options: water sucrose cellulose oxygen Save Question 12 (1 point) An ecologist is studying all the animals, plants, fungi and bacteria, as well as the interaction among them, in a forest? He is studying the _________ in the forest. Question 12 options: niche biome community

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