First Aid Biochemistry USMLE
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | PKU
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| show | NADH increase prevents gluconeogenesis by shunting pyruvate and oxaloacetate to lactate and malate
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| 2 year old girl has increase in abdominal girth, failure to thrive and skin and hair depigmentation - what is the diagnosis | show 🗑
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| Alcoholic develops rash, diarrhea and altered mental statusWhat is the vitamin defficiency | show 🗑
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| show | Gilberts syndrome
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| 51 year old man has black spots on his sclera and has noted that urine turns black when he is standing | show 🗑
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| 25 year old complains of chest pains and has xanthoma of Achilles tendonWhat is his disease and where is the defect | show 🗑
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| show | Chromatin
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| show | H1 histone
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| show | Heterochromatin
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| show | Euchromatin
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| Name purines | show 🗑
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| show | C, T, UCUT Pye
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| show | Purines
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| show | Pyrimidines
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| show | guanine
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| show | thymine
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| Deamination of cytosine makes _ | show 🗑
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| Uracil is found in _ Thymine is found in _ | show 🗑
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| Which bond is stronger GC or AT | show 🗑
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| If GC content is increased what happens to melting temperature | show 🗑
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| show | 3-5 phosphodiesterase bond
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| Substituting purine for purine or pyrimidine for pyrimidine is called ? | show 🗑
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| Substituting purine for pyrimidine or vice versa | show 🗑
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| 4 features of genetic code | show 🗑
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| Name type of mutation - same amino acid, often base change in 3d position of codon tRNA wobble) | show 🗑
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| Name type of mutation - changed amino acid (conservative - new amino acid is similar in chemical structure) | show 🗑
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| show | Nonsense mutation
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| show | Frameshift mutation
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| show | Single origin of replication - continuous DNA synthesis on leading strand and discontinuous (okazaki fragments) on lagging strand
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| show | Primase makes RNA PRIMER on which DNA polymerase III can initiate replication
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| Elongates the chain by adding deoxynucleotides to the 3 end until it reaches primer of preceding fragment | show 🗑
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| show | 5'-3' exonuclease activity of DNA polymerase I
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| Has 5'-3' synthesis and proofreads with 3'-5' exonuclease | show 🗑
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| show | DNA topoisomerases
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| show | Xeroderma pigmentosum (skin sensitivity to UV light)Ataxia-telangiectasia (x rays)Blooms syndrome (radiation)Fanconis anemia (cross linking agents)
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| show | Xeroderma pigmentosumAutosomal recessive
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| In which direction is Dna and RNA synthesized | show 🗑
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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