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49 terms

Chapter 14

STUDY
PLAY
character
a heritable feature
hybridization
the mating of true breeding varieties
P generation
parental generation
Michael Morin
gayest guy ever
F1 Generation
first filial generation
F2 Generation
second filial generation
dominant allele
determines an organisms appearance
recessive allele
no visible effect on the organism
law of segregation
is the separation of different racial groups in daily life, such as eating in a restaurant, drinking from a water fountain, using a washroom, attending school, going to the movies, or in the rental or purchase of a home
the real law of segregation
paired alleles separate during meiosis, each gamete gets only one allele from each pair
punnett squares
predicts the allele composition of offspring of genetic make up
homozygous
pair of identical alleles
heterozygous
two different alleles
phenotype
observable traits of an organism
genotype
genetic makeup of an organism
testcross
breeding of an organism of unknown genotype with a homozygous recessive individual to determine the unknown genotype
monohybrids
organism's that were heterozygous for one character
dihybrids
individuals heterozygous for two characters
law of independent assortment
each pair of alleles segregates independently of each other pair of alleles during gamete formation
complete dominance
when offspring always looked like one of the two parental varieties because one allele in a pair showed...
incomplete dominance
when neither allele is completely dominant
codominance
the two alleles both affect the phenotype in separate ways
Tay-Sachs Disease
an inherited disorder in humans that affects the human enzymes in the body
genetics
study of heredity
heredity
process by which traits are passed from parent to offspring
Gregor Mendel
established Mendelian genetics; founder of genetics; Augustanian monk born in chekaslovakia; looks like brian francke
Gregor Mendel
experimented with pea plants
pea plant experiment
1) each trait was studied on a different chromosome 2) peas self pollinate 3) peas grow quickly and easy to cross
stamen
used to pollinate stigma; male reproductive organ on plants
stigma
the part of a flower's carpel, which traps pollen grains.
cross pollination
male pollinates the female of a flower on a different plant
purebred
offspring display traits that are identical to the parent plant when it is self pollinated
strain
plants that are pure for a specific trait
traits
observable characteristics that are passed from generation to generation
hybrid
organism produced by crossing parents with different traits
molecular genetics
the study of the structure and function of chromosomes and genes
gene
unit of heredity; ordered sequence of nucleotides
alleles
different forms of a gene
14
how many traits did Mendel use
7
how many characteristics did Mendel use
lady gaga
hahahahahahahahhahahahahahahahahahahahahahah
contrasting
plants with __________ traits were cross pollinated
1
the offspring were the F_ Generation
self pollinated
F1 plants were _____ ___________ in Mendel's experiment
f2
the offspring of the self pollinated plants were the __ __ generation
absent
when strains were crossed, one trait would be ____ in the F1 generation
dominant
the trait expressed in the F1 generation would "override" the other is the _______
recessive
the trait not expressed in the F1 generation but reappears in F2 generation are considered_________
men
Michael Morin likes _____