Biology Chapter 12.1 Word Scramble
|
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
Term | Definition |
sex chromosomes | 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 | an autosomal trait that is influenced by the presence of male or female sex hormones |
linked gene | one of a pair of genes that tend to be inherited together |
chromosome map | a diagram of gene positions on a chromosome |
map unit | in chromosome mapping, an increment of 1 percent in the frequency of crossing-over |
germ cell mutation | mutation occurring in gametes |
somatic cell mutation | a mutation that occurs in a body cell |
lethal mutation | a mutation that affects the organism so much that it can't 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 |
nondisjunction | the failure of homologous chromosomes to separate during meiosis 1 or 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 one nucleotide is replaced by another nucleotide |
frameshift mutation | a mutation, such as the insertion or deletion of a nucleotide in a coding sequence that results in the misreading of the code during translation because of a change in the reading frame |
insertion mutation | a mutation in which one or more nucleotides are added to a gene |
Created by:
conoverc20
Popular Biology sets