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| either of the two cells that result when a cell divides |
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| aby of the saprotrophic fungi [big word] and bacteria that absorb nutrients from nonliving organic material such as corpses, fallen plant material, and the wastes of living organisms, and convert them into inorganic forms. |
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| a chemical reaction in which two molecules covalently bond to each other with teh removal of a water molecule |
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| in proteins, a process in which a protein unravels and loses its native conformation, thereby becoming biologyically inactive. In DNA, the separation of the two strands of the double helix. Denaturation occurs under extreme conditions of pH, salt concentration, and temperature. |
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| a double-stranded, helical nucleic acid molecule capable of replicating and determining the inheried structure of a cell's proteins. |
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| the sugar component of DNA, having one less hydroxyl group than ribose, the sugar component of RNA. |
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| a type of intercellular junction in animal cells that functions as an anchor. |
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| a type of embryonic development in protostomes that rigidly casts the developmental fate of each embryonic cell very early. |
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| the spontaneous tendency of a substance to move down its concentration gradient form a more concentrated to a less concentrated area. |
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| an organism that is heterozygus with respect to two genes of interest. All the offspring froma cross between parents doubly homoxygous for different alleles are dihybrids. For example, parents of genotypes AABB and aabb produce a dihybrid of genotype AaBb. |
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| a cell containing two sets of chromosomes (2n), one set inherited from each parent. |
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| a double sugar, consisting of two monosaccharides joined by dehydration synthesis. |
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| a strong covalent bond formed when the sulfur of one cysteine monomer bonds to the sulfur of another cysteine monomer. |
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| a linking enzyme essential for DNA replication; catalyzes the covalent bonding of the 3' end of a new DNA fragment to the 5' end of a growing chain. |
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| an enzyme that catalyzes the elongation of new DNA at a replication fork by the addition of nucleotides to an existing chain. |
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| (1)a taxonomic category above the kingdom level. The three domains are Archaea, Bacteria, and Eukarya. (2)An independently folding part of a protein. |
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| the form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape. |
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