Download Mendel, Alleles, Punnentt squares Complex Punnett Squares VOCAB:

Mendel, Alleles, Punnentt squares
Complex Punnett Squares
Mendel experiment:
VOCAB:
Mendel crosses purebred purple flowers with purebred white
flowers resulting in purple flowers.
When he crosses the offspring purple flowers the result was
three purple flowers and one white flower.
(traits had only 2 forms purple or white)
Conclusion was law of segregation:
receive one allele from each parent (2 copies total)
give one allele to each offspring
(all inherited separately)
Punnett Squares:
Chapter 7
KNOW YOUR PUNNETT SQUARES FOR
CODOMINANCE AND INCOMPLETE DOMINANCE
VOCAB:
Trait
Genetics
Purebred
Cross
Law of segregation
Gene
Allele
Homozygous
Heterozygous
Genome
Genotype
Phenotype
Dominant
Recessive
Punnett Square
Monohybrid Cross
Testcross
Dihybrid Cross
Law of Independent Assortment
Probability
Locus- Location on chromosome
Carrier
Sex-linked gene (trait)
X chromosome inactivation
Incomplete Dominance
Codominance
Polygenic Trait
Pedigree
Karyotype
Chapter 6
Punnet squares are used to show how alleles are inherited
from parents to offspring. Parents are on the outside of the
Punnett square and the inside is the genotype possibilities of
the offspring.
Probability is the fraction of how many boxes contain the
genotype of phenotype.
Ratio (2:2) will always equal the number of boxes in the
Punnett square and you count the boxes for the phenotypes
or genotypes.
Dihybrid Cross: A cross where you track 2 alleles. Boxes will
have 4 letters. KEEP THE LETTERS TOGETHER!!!!!!!
CARRIERS MUST HAVE 2 COPIES AND NOT HAVE
THE TRAIT!
Pedigrees
Autosomal genes will be equal between males and
females. Heterozygotes will be parents of multiple
phenotypes and offspring of a dominant and a recessive
parent.
Sex-linked genes will be mostly in male offspring.
Females with male offspring with the disease, that do not
have the trait themselves, will be carriers. Males are not
carriers in sex-linked genes!
Karyotypes are a picture of a persons chromosomes in
their cells.