Chapter 12: DNA And Rna

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1.  Process in which one strain of bacteria changes into another one
2.  Process in which DNA makes a copy of itself
3.  Protein that DNA wraps around in eukaryotic chromosomes
4.  Virus that infects bacteria
5.  Region of DNA that indicates to an enzyme where to bind to make RNA
6.  A change in the genetic material
7.  Sections of RNA molocules that are not involved in coding for proteins
8.  A group of genes that operate together
9.  Three nucleotides that specify a single amino acid to be added to a polypeptide
10.  Process in which cells become specialized in structure and function
11.  The principal enzyme involved in DNA replication
12.  Condition in which an organism has extra sets of chromosomes
13.  A(n) ______________, is made up of three parts: a deoxyribose sugar, a phosphate group, and a nitrogeneous base.
14.  The principle of ____________ states that hydrogenbonds can form only between certain bases in DNA.
15.  Eukaryotic chromoromes contain both DNA and protein tightly packed together to form a substance called ____________.
16.  During the process of _____________, RNA molocules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence in RNA.
17.  The enzyme that uses one strand of DNA as a template to assemble nucleotides into a strand of RNA is called ________________.
18.  After introns have been cut out of RNA molocules, the remaining peices called _________ are spliced together.
19.  The decoding of an mRNA message into a protein is known as __________.
20.  Three bases on the tRNA molocule are that complementary to one of the mRNA codons are called a(n) _____________.
21.  When the lac repressor protein binds to the ___________________, the lac operon is turned off.
22.  A series of genes, called the __________________, controls the development of organs and tissues in various parts of an embryo.
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