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Exam #2 Vocabulary
Terms in this set (33)
Two different mutations in the heterozygous condition are exhibited as the wild-type phenotype; indicates that the mutations are at different loci.
a collection of mutations that do not complement each other
A fungal mycelium that contains two or more haploid nuclei per cell.
(genetics) an organism or cell having two sets of chromosomes or twice the haploid number
visual image on an autoradiogram or agarose gel showing a DNA fragment
(biology) the existence of two or more forms of individuals within the same animal species (independent of sex differences)
(genetics) an organism or cell having only one complete set of chromosomes
a bread mold, is a model organism with a well-studied genome
A type of gene interaction in which one gene alters the phenotypic effects of another gene that is independently inherited.
Enzyme that cuts DNA at a specific sequence of nucleotides
differences in homologous DNA sequences that are reflected in different lengths of restriction fragments produced when the DNA is cut up with restriction enzymes
(polymerase chain reaction) multiple copies of a specific segment of DNA
Variant DNA sequence in which the purine or pyrimidine base of a single nucleotide has been replaced by another such base (also called single nucleotide polymorphism)
The alternating chain of sugar and phosphate to which the DNA and RNA nitrogenous bases are attached
Breeding technique that involves crossing dissimilar individuals to bring together the best traits of both organisms
A short segment of DNA that acts as the starting point for a new strand
A single-stranded DNA or RNA fragment used in genetic engineering to search for a particular gene or other DNA sequence
A pair of complementary nitrogenous bases in a DNA molecule
a nitrogenous base that has a double-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine
a nitrogenous base that has a single-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; thymine, cytosine, or uracil
A component of nucleic acids that carries hereditary information in DNA and RNA in cells. Chemically, it is a pyrimidine base.
The base that pairs with Guanine with DNA
A component of nucleic acids that carries hereditary information in DNA and RNA in cells. Chemically, it is a purine base.
The base that pairs with Cytosine in DNA
A component of nucleic acids, energy-carrying molecules such as ATP, and certain coenzymes. Chemically, it is a purine base.
The base that pairs with Thymine in DNA
A component of nucleic acid that carries hereditary information in DNA in cells. Chemically, it is a pyrimidine base.
the nucleotide that hydrogen bonds with the nucleotide adenine in DNA.
a unit of DNA.. there are 4 of these: A, T, G, C
A bacterial culture media rich in more than one organic compound source and other nutrients so that bacterial growth is readily supported permitting bacteria to grow exponentially.
Growth media containing the bare essentials (inorganic salts, carbon and water), only wild type cells can grow.
A base-pair substitution that results in a codon that codes for a different amino acid.
A mutation that changes an amino acid codon to one of the three stop codons, resulting in a shorter and usually nonfunctional protein.
A mutation that changes a single nucleotide, but does not change the amino acid created.
A point mutation in which a pyrimidine is substituted for a pyrimidine, or a purine is substituted for a purine.
A point mutation in which a pyrimidine is substituted for a purine, or vice versa.
When part of one chromosome breaks off and attaches to another non homologous, chromosome.
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