Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
genetics |
scientific study of heredity
|
|
|
fertilization |
process in sexual reproduction in which male and female reproductive cells join to form a new cell
|
|
|
true-breeding |
term used to describe organisms that produce offspring identical to themselves if allowed to self-pollinate
|
|
|
trait |
trait specific characteristic that varies from one individual to another Spanish
|
|
|
hybrid (heterozygous) |
offspring of crosses between parents with different traits
|
|
|
gene |
sequence of DNA that codes for a protein and thus determines a trait
|
|
|
allele |
one of a number of different forms of a gene
|
|
|
segregation |
separation of alleles during gamete formation
|
|
|
gamete |
specialized cell involved in sexual reproduction
|
|
|
homozygous |
term used to refer to an organism that has two identical alleles for a particular trait
|
|
|
heterozygous |
term used to refer to an organism that has two different alleles for the same trait
|
|
|
phenotype |
physical characteristic of an organism |
|
|
genotype |
genetic makeup of an organism |
|
|
independent assortment |
independent segregation of genes during the formation of gametes
|
|
|
incomplete dominance |
situation in which one allele is not completely dominant over another
|
|
|
codominance |
situation in which both alleles of a gene contribute to the phenotype of the organism
|
|
|
selective breeding |
method of breeding that allows only those individual organisms with desired characteristics to produce the next generation
|
|
|
inbreeding |
continued breeding of individuals with similar characteristics to maintain the desired characteristics of a line of organisms
|
|
|
genetic engineering |
process of making changes in the DNA code of living organisms
|
|
|
recombinant DNA |
DNA produced by combining DNA from different sources
|
|
|
karyotyper |
photograph of chromosomes grouped in order in pairs
|
|
|
sex chromosome |
one of two chromosomes that determine an individual's sex; females have two X chromosomes; males have one X chromosome and one Y chromosome
|
|
|
pedigree |
chart that shows the relationships within a family
|
|
|
nondisjunction |
error in meiosis in which homologous chromosomes fail to separate
|
|
|
DNA fingerprinting |
analysis of sections of DNA that have little or no known function, but vary widely from one individual to another, in order to identify individuals
|
