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17 terms

science test that im screwed for

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genetic code
the ordering of nucleotides in DNA molecules that carries the genetic information in living cells
meiosis
(genetics) cell division that produces reproductive cells in sexually reproducing organisms
mutations
Random errors in gene replication that lead to a change in the sequence of nucleotides; the source of all genetic diversity
multiple alleles
three or more forms of a gene that code for a single trait
sex chromosomes
one of the 23 pairs of chromosomes in the human, contains genes that will determine the sex of the individual
sex-linked traits
traits that are inherited with sex chromosomes
pedigree
a diagram that shows the occurrence of a genetic trait in several generations of a family
karyotype
A picture of all the chromosomes in a cell arranged in pairs
selective breeding
The process of selecting a few organisms with desired traits to serve as parents of the next generation
stem cells
unspecialized cells that retain the ability to become a wide variety of specialized cells
cloning
making a genetically identical copy of DNA or of an organism
genetic engineering
the transfer of a gene from the DNA of one organism into another organism, in order to produce an organism with desired traits
human genome
map of the genes on the 46 human chromosomes
carrier
a person who has one recessive allele for a trait, but does not have the trait
inbreeding
continued breeding of individuals with similar characteristics
hybridization
breeding technique that involves crossing dissimilar individuals to bring together the best traits of both organisms
gene therapy
The insertion of working copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder