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Biology 11 Ch 6.1-3
Genetic Processes: Chapter 6.1 - 6.2 - 6.3
| Question | Answer |
|---|---|
| incomplete dominance | a condition in which neither allele for a gene completely conceals the presence of the other; it results in intermediate expression of a trait |
| co-dominance | the condition in which both alleles for a trait are equally expressed in a heterozygote; both alleles are dominant heterozygous advantage |
| multiple alleles | a gene with more than two alleles |
| polygenic inheritance | a trait that is controlled by more than one gene |
| continuous variation | a range of variation in one trait resulting from the activity of many genes |
| linked genes | genes that are on the same chromosome and that tend to be inherited together |
| linkage group | all genes on any one chromosome |
| chromosome mapping | the process used to determine the relative location of genes on chromosomes |
| sex-linked trait | a trait controlled by genes on the X or the Y chromosome |
| X-linked & Y-linked | a trait found on either the X chromosome or the Y chromosome |
| Barr bodies | structure in the female cell in which one of the X chromosomes is inactive. The inactive X chromosome is tightly condensed |
| inactive X chromosome | a Barr body |
| genome | the complete sequence of nucleotides in an organism |
| bioinformatics | a field of study that deals with using computer technology to create and analyze large databases of information |
| genomics | the study of genomes and the complex interactions of genes that result in phenotypes |
| genetic profile | the complete genotype of an individual, including various mutations |
| single nucleotide polymorphism (SNP) | a type of genetic variation that results from changes in the DNA at single locations. |
| proteome | all of the proteins in an organism |
| proteomics | the study of the three-dimensional shape and function of all cellular proteins |
| epigenetics | the study of how changes in the inheritance of certain traits or phenotypes are based on changes to gene function and not to changes in DNA sequence |
| epigenome | cellular material that is not part of the genome but influences whether a gene is “turned on” or “turned off ” |
| microarrays | a technique used to study differences in gene activity of DNA |
| heterozygous advantage | a situation in which heterozygous individuals have an advantage over both homozygous dominant and homozygous recessive individuals |
Created by:
marsenault
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