Chapter 11
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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| DNA Relpication | process by which chromosomal DNA is copied before mitosis or meiosis
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| double helix | the shape of a DNA molecule, forms when 2 twisted strands of DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases
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| nitrogen base | carbon ring structure found in DNA or RNA that contains one or more atoms of nitrogen: includes adenine, guanine, cytosine, thymine, and uracil
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| codon | a set of three nitrogen bases that represents an amino acid; the order of the bases in mRNA determines the type and order of amino acids in a protein
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| messenger RNA (mRNA) | RNA that transports information from DNA in the nucleus to the cell's cytoplasm
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| ribosomal RNA (rRNA) | RNA that makes up the ribosomes; clamps onto mRNA and uses its information to assimble amino acids in the correct order
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| transcription | process in the cell nucleus where enzymes make an RNA copy of a DNA strand
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| transfer RNA (tRNA) | RNA that transports amino acids to the ribosomes to be assembled into proteins
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| translation | process of converting information in mRNA into a sequence of amino acids in a protein
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| chromosomal mutation | mutation that occurs at the chromosomal level resulting in changes in the gene distribution to gametes during meiosos; caused when parts of chromosomes break off or rejoin incorrectly
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| frameshift mutation | mutation that occurs when a single base is added or deleted from DNA; causes a shift in the reading of codons by one base
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| mutagen | any agent that can cause a change in DNA; includes high-energy radiation, chemicals, or high temperatures
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| mutation | any change or random error in a DNA sequence
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| point mutation | mutation in a DNA sequence; occurs from a change in a single base pair
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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.
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.
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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Created by:
TimZeller
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