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genetics study four
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| Question | Answer |
|---|---|
| anticodon | A sequence of three adjacent nucleotides located on one end of transfer RNA. It bounds to the complementary coding triplet of nucleotides in messenger RNA during translation phase of protein synthesis. |
| mutations | A permanent, heritable change in the nucleotide sequence in a gene or a chromosome; the process in which such a change occurs in a gene or in a chromosome |
| chromosomal mutation | A change in the chromosome structure or number, often due to an error in pairing during the crossing-over stage of meiosis. The main types of chromosome mutation are translocation, duplication, deletion and inversion. |
| gene mutation | due to an intramolecular reorganization of a gene |
| mutagens | chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes. |
| polyploidy | an organism or cell having more than twice the haploid number of chromosomes.Of a cell or organism having more than twice the haploid number of chromosomes; a polyploid cell; a polyploid species.Organisms that possess two sets of each chromosome |
| point mutation | A mutation in DNA or RNA molecule involving a change of only one nucleotide base. |
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aleja
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