Biochem Final, Mizzou, Spring 2015
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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| circular | show 🗑
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| show | where the DNA or "genome" is located eukaryotic cells
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| linear | show 🗑
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| show | genes are composed of ____
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| show | have 20-30,000 genes
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| nucleotides | show 🗑
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| show | consist of a nitrogen base, a monosaccharide, & at least one phosphate
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| show | sugar is a ribose, contains an OH group on the 2' C
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| show | sugar is a deoxyribose, contains an H group on the 2' C
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| show | a nitrogen base & a ribose sugar
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| show | a nucleoside (base and ribose) with a phosphate group
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| show | this structure of nucleic acids is the order of the bases
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| show | this structure of nucleic acids is the 3-D conformation of the polynucleotide backbone
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| show | this structure of nucleic acids is the supercoiling
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| show | this structure of nucleic acids is the DNA/ protein interactions
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| show | nucleotides are linked 5' to 3' by _________ bonds (primary structure)
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| show | the sugar-phosphate backbone is _______ (primary structure)
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| variable | show 🗑
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| show | the ordered arrangement of nucleic acid strands
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| show | 2 anti-parallel DNA strands coiled around the same axis (spiral staircase) this is the secondary structure
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| show | DNA strands are anti-parallel and overall DNA is _____ charged (acidic)
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| hydrogen | show 🗑
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| show | A-T has ____ hydrogen bonds
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| three | show 🗑
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| show | B-DNA is a *right-handed* helix (point thumb up, DNA winds ____ in direction fingers are pointing)
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| 32 | show 🗑
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| supercoiling | show 🗑
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| show | enzymes that control the supercoiled state of DNA are ________
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| topoisomerase 1 | show 🗑
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| show | cuts BOTH strands, passes some of the remaining DNA helix between the cut strands, and reseals; gets rid of 2 coils at a time
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| show | supercoiling of eukaryotic DNA occurs through complexes with proteins called _______
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| show | histones are _____ charged proteins; rich in the basic amino acids lysine and arginine
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| chromatin | show 🗑
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| nucleosome | show 🗑
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| histone proteins | show 🗑
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| show | is the increase of absorbance (optical density) of a material. The most famous example is that of DNA that occurs when the DNA duplex is denatured
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| show | the pyrimidine nitrogen bases in RNA are ____ and cytosine
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| tRNA | show 🗑
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| show | FOUND IN RIBOSOMES, the site of protein synthesis
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| show | directs amino acid sequence of proteins; contains the genetic information from DNA (genes); is translated into a polypeptide sequence (protein or an amino acid polymer)
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
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.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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