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BIO 181 Final Exam Review (Shaffer ASU)
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The stage of meiosis where "crossing over" occurs Correct Answer - Prophase 1 A mutation that you could pass on to your offspring would occur in the ___ cells Correct Answer - Germ cells Most mutations that occur in our genomes are... Correct Answer - Neutral Which type of mutation would most likely have dramatic effects on the gene of interest? Correct Answer - Nonsense mutation Frameshift mutation What is the probability of a child having the same phenotype as the first parent: AaBbcc x aabbCC Correct Answer - 0 p^2+2pq+q^2 gives Correct Answer - Hardy Weinberg equilibrium frequencies Which is an example of heterozygote advantage? Correct Answer - Sickle sell trait Which of the following statements must be true in order for mitochondrial ATP synthase to work? Correct Answer - pH of inter membrane space must be lower than that of the matrix There must be a difference in concentration of H+ ions During glycolysis, glucose is broken down into two molecules of Correct Answer - Pyruvate Which of the following is the most important product of the fermentation pathway in cells? Correct Answer - NAD+ Photosynthesis is usually divided up into how many separate reactions? Correct Answer - 2 Which is NOT a stage of cellular respiration? Correct Answer - Photosynthesis Which one of the following represents the REDUCED forms of the electron carriers of cellular respiration? NAD+ and FAD NAD+ and FADH NADH and FAD
NADH and FADH2 Correct Answer - NADH and FADH The step of cellular respiration that results in the biggest direct payoff of ATP is Correct Answer - The electron transport chain In the absence of oxygen this is the route taken by the cell to generate ATP Correct Answer - Glycolysis Fermentation Cell membranes are Correct Answer - Dynamic and exist in a fluid state Important in maintaining the internal environment of cells Composed of lipid bi-layers Embedded with transmembrane proteins This type of organism does not have a nucleus Correct Answer - Prokaryote This type of organism has its DNA organized into an operon- with multiple genes co-transcribed Correct Answer - Prokaryotes Chloroplasts Mitochondria This organelle is the primary sorting location for proteins bound for other places in the cell Correct Answer - Golgi apparatus Which six elements are the most important for the survival of life? Correct Answer - C, H, N, O, P, S The shared biochemistry of all life is among the evidence for Correct Answer - Shared common descent of all life on earth The bacterial community in our bodies is called Correct Answer - The microbiome Water has which property or properties? Correct Answer - Hydrophilic Forms hydrogen bonds Ocean acidification is resulting due to Correct Answer - Global release of CO2 through the use of fossil fuels
Mad cow disease and kuru are both caused by which biological agent? Correct Answer - Prion The pair awarded the Nobel Prize for discovering the structure of DNA Correct Answer - Watson/Crick DNA is most important for Correct Answer - Storing genetic information Transmitting genetic information Replication is the process of Correct Answer - DNA copying itself If the guanine content of DNA from the bacterial cells is 40% what is the cytosine content? Correct Answer - 40% If the cytosine content of DNA from the bacterial cells is 30% what is the adenine content? Correct Answer - 20% Chromatin is composed of Correct Answer - Histones and DNA Which one of the following nucleotides hydrogen base pairs with adenine in an RNA molecule? Correct Answer - Uracil 16% of the nucleotides are adenine. What are the percentages of the other nucleotides? Correct Answer - 16% thymidine, 34% guanine, 34% cytosine The strands in a DNA molecule are Correct Answer - Antiparallel Complimentary The original molecule of life may have been Correct Answer - RNA The central dogma of molecular biology states... Correct Answer - DNA -> RNA -> Protein In RNA, which nucleotide base replaces Thymine in DNA Correct Answer - Uracil New DNA strands always grow... Correct Answer - In the 5' to 3' direction By using template strands as a guide _____ separates the strands of parental double helix at the replication fork Correct Answer - Helicase The telomere caps the end of the chromosome after replication. How many repeats of 3'GGGATT5'? Correct Answer - Between 1500 and 3000
Stages of PCR reaction in correct order? Correct Answer - Denaturing, annealing, extension DNA replication is... Correct Answer - Semi-conservative The process by which DNA is copied (prior to cell division) is Correct Answer - Replication The process by which mRNA is expressed as a chain of amino acids is called Correct Answer
The most recent human common ancestor was approximately ___ years ago Correct Answer