Genetics Chapter 3 - Exam 1
chance deviation -
Chi Square Test - Chance events subject to random fluctuations
Expected outcome is diminished by larger sample size
chi test -
a statistical test to determine whether or not an observed set of data is equivalent to the
expected data
chromosome theory of inheritance -
A basic principle in biology stating that genes are located on chromosomes and that the
behavior of chromosomes during meiosis accounts for inheritance patterns. -- Boveri and Sutton
dizygotic twins -
often called fraternal twins, occurring when two eggs each get fertilized by two different
sperm, resulting in two zygotes in the uterus at the same time
locus -
Location of a gene on a chromosome
null hypothesis -
the hypothesis that there is no significant difference between observed and expected datasets
pedigree -
A diagram that shows the occurrence of a genetic trait in several generations of a family.
proband -
in genetics research, the individual displaying the trait or characteristic being studied,
leading to the construction of a pedigree to track the trait
product law -
the probability of two independent random events both occurring is the product of the
individual probabilities of the events -- the AND rule
reciprocal cross -
a cross in which the phenotypes of the male and female are reversed compared with a prior
cross
rescue experiment -
An experimental approach that involves transferring a gene or protein to cells of an organism
to restore a particular phenotype or function.
selfing -
self-fertilization in plants
