Shared Flashcard Set

Details

Genetics 2
genetics
21
Biology
Not Applicable
02/14/2005

Additional Biology Flashcards

 


 

Cards

Term
Karyotype
Definition
an ordered arrangement of chromosome
Term
chromosome theory
Definition
1)genes are located on chromosomes
2)There are many genes on each chromosome
Term
sex chromosomes
Definition
1 pair of chromosomes
Term
autosomes
Definition
22 pairs of autosomes (any chomosome that is not a sex chromosome)
Term
sex linked traits
Definition
traits found on sex chromosomes
Term
sex influenced traits
Definition
appear differently in men and women because of sex chromosomes
ex-male pattern baldness
Term
polygenic traits
Definition
controlled by genes at many locations
Term
multiple allele traits
Definition
singles traits with more than 2 alleles
Term
gene linkage
Definition
2 genes on same chromosome
do not assort independently
ex-red hair and freckles
Term
down syndrome
Definition
causes mental retardation
characteristic physical features
Term
inbreeding
Definition
mating plants or animals that have the same genetic makeups
Term
hybridization
Definition
crossing of two parents with different traits in order to get offsprings that have more desirable traits than either parent
Term
polyploidy
Definition
more than 2 complete sets of chromosomes
harmful in animals
beneficial in many plants
Term
genetic engineering
Definition
splicing 1 organisms DNA into another
Term
mass selection
Definition
choosing a few organisms out of a larger population to act as the parental generation
Term
klinefelter's syndrome
Definition
XXY- sterile male
Term
Turner's syndrome
Definition
XO- sterile female, short, low intelligence
Term
Trisomy
Definition
1 extra chromosome
Term
monosomy
Definition
1 missing chromosome
Term
mutation
Definition
a sudden genetic change
Term
mutagens
Definition
agents that cause mutations
ex-radiation
smoke
chemicals
Supporting users have an ad free experience!