Intro to Bio Quiz 4 (Ch. 13/14) Flashcards
Define inheritance
physical characteristics PASSED DOWN
Define Offspring
One allele from mom and dad
Define Gene
Location on chromosome that codes (on proteins)
Define Allele
An alternate form of gene
Define Homozygous
An identicle allele (WW,ww)
Define Heterozygous
Different allele (Ww) *Hybrids
Define Sex Chromosome
Determines Sex
Inherited with all their genes
Male: XY. Female: XX
Define Autosome
non-sex chromosomes
1-22
Define Dominate
“WW” or “Ww” genotypes
Define Recessive
“ww” without a dominate allele
Define Genotype
Genetic material/combination of alleles
Define Phenotype
Physical appearance/what is expressed
Define Punnett Square
genetic bookkeeping
Define Codominance
A dominate allele is able to cover up another allele in heterozygote.
-Both traits show
Define Incomplete Dominance
Mix of colors (3 colors)
-Snapdragon is pink after crossing red and white snapdragon
Define Multiple alleles
gene has more than 2 alleles
BLOOD TYPE
-A, B, AB, O
Define Polygenic Trait
influenced by many different genes
-SKIN COLOR
Define Sex Linked Trait
one goes with the other
Ex: pale skin&red hair
What does being a Heterozygous individual mean?
Their genotype is Ww
(hybrid)
Genotype and dominate phenotype
Pedigree chart
Filled Circle-Woman w/trait
Circle- Woman
Square-Man
Fill Square-Man w/trait
Tay-Sachs
Recessive Disorder
-lysosomal storage disease
(parents without trait)
Disorders in males
red green color blindness
Melansomes
the pigment of eye skin and hair . organelles
Heterozygous and Hybrids
Mendel’s Law of Segregation
seperation
Law of Independent Assortment
Multiple Traits are
Inherited
Independently
6 Prezygotic isolation
STIMB
spatial isolation, temporal isolation, mechanical isolation, gametic isolation, and behavioral isolation
evolution
heritable characteristics of a population of organisms change over generations
