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;
24 Cards in this Set
- Front
- Back
|
variation of a particular inherited character
|
trait
|
|
|
study of heredity
|
genetics
|
|
|
offspring of two different true-breeding varieties
|
hybrid
|
|
|
having identical alleles for a gene
|
homozygous
|
|
|
having different alleles for a gene
|
heterozygous
|
|
|
descriptive of an allele in a heterozygous individual that appears to be the only one afftecting a trait
|
dominant
|
|
|
descriptive of an allele in a heterozygous individual that does not appear to affect a trait
|
recessive
|
|
|
diagram showing the probabilities of the possible outcomes of a genetic cross
|
punnett square
|
|
|
observable traits of an organism
|
phenotype
|
|
|
genetic makeup of an organism; an organism's combination of alleles
|
genotype
|
|
|
mating of an individual of unknown genotype but dominant phenotype with a homozygous recessive individual
|
testcross
|
|
|
inheritance in which heterozygotes have a phenotype intermediate between the phenotypes of the two homozygotes
|
intermediate inheritance
|
|
|
inheritance pattern in which a heterozygote expresses the distinct traits of both alleles
|
codominance
|
|
|
combined effect of two or more genes on a single character
|
polygenic inheritance
|
|
|
specific location of a gene on a chromosoe
|
gene locus
|
|
|
condition in which an individual has three number 1 chromosomes, resulting in Down syndrome
|
trisomy 21
|
|
|
general set of symptoms in people with trisomy 21
|
Down syndrome
|
|
|
even during meiosis in which homologous chromosomes or sister chromatids fail to seperate
|
nondisjunction
|
|
|
change to a chromosome in which part of the chromosome is repeated
|
duplication
|
|
|
change to a chromosome in which a fragment of the chromosome is reversed
|
inversion
|
|
|
genetic element that moves from one location to another in a genome
|
transposon
|
|
|
family tree that records and traces the occurrence of trait in a family
|
pedigree
|
|
|
individual who has one copy of the allele for a recessive disorder and does not exhibit symptoms
|
carrier
|
|
|
person trained to collect, analyze, and explain data about human inheritance patterns
|
genetic counselor
|
