Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
MB Chapter 12-1
Chapter 12 Section 1 Terms
| Term | Definition |
|---|---|
| sex chromosome | one of the pair of chromosomes that determine the sex of an individual |
| autosome | any chromosome that is not a sex chromosome |
| sex-linked trait | a trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosome or the Y chromosome in humans |
| linked gene | genes that are linked |
| chromosome map | a diagram of gene positions of a chromosome |
| map unit | units of measurement used on a map |
| germ-cell mutation | a mutation that occurs with a germ |
| somatic-cell mutation | a mutation that occurs in a body cell |
| lethal mutation | a gene or a chromosomal mutation that influences the development of an organism in such a way that the organism cannot survive |
| deletion | the loss of a part of DNA from a chromosome |
| inversion | a reversal in the order of the genes, or of a chromosome segment, within a chromosome |
| translocation | the movement of a segment of DNA from one chromosome to another, which results in a change in the position of the segment; also the movement of soluble nutrients from one part of a plant to another |
| nondisjunction | the failure of homologous chromosomes to separate during meiosis I of the failure of sister chromatids to separate during mitosis or meiosis II |
| point mutation | a mutation in which only one nucleotide or nitrogenous base in a gene is changed |
| substitution | a mutation in which a nucleotide or a codon in DNA is replaced with a different nucleotide |
| frameshift mutation | a mutation, such as the insertion or deletion of a nucleotide in a coding sequence, that results un the misreading of the code during translation because of a change in the reading frame |
| insertion mutation | a mutation at the point at which a muscle is attached to bone |
Created by:
lakatosv19
Popular Biology sets