Pedigrees
What are the pedigree symbols for Males and Females?
Males are Squares. Females are Circles.
The man who is the founder of heredity and genetics.
Gregor Mendel
The grid where we determine the possible genetic offsprings for a trait.
What is a Punnett Square?
The weaker type of allele.
What is a recessive allele?
What genetic phenomenon is demonstrated if we cross a red flower with a white flower, and we produce a pink flower?
Incomplete Dominance
What is the pedigree symbol for a female carrier of a trait?
A half filled circle.
A particular form of a gene, such as the A in the genotype Aa.
What is an allele?
Which of the following represents a heterozygous genotype?
AA Bb cc
Bb
Which genetic disorder results in the lack of pigmentation of the skin, hair, or eyes?
Albinism
In simple genetics, what is the chance that the heterozygous genotype display the dominant trait?
100% of the time.
A horizontal line between two symbols (square and/or circle)
What is the symbol for a marriage/mating?
The stronger type of allele
What is a Dominant Allele?
What information do we need before we can fill in a Punnett square?
The genotypes of the parents.
Which genetic disease results when an enzyme that helps break down fatty substances is absent resulting in the child's body lost function, leading to blindness, deafness, paralysis and death at a very earlier age?
Tay-Sachs Disease
Suppose a disease is recessive. Cross a HH parent with a Hh. What are the odds of the disease effecting the offspring?
0%
What is the pedigree symbol for twins?
Two diagonal vertical lines originating from the same point
Sections of DNA molecules that code for one trait.
What are Genes?
What is labeled on the outside of a Punnett square?
Parent Genotypes
Which genetic disorder that produce thick, sticky mucus that can get caught in airways?
Cystic Fibrosis
What is the chance of having a child with hh if you cross Hh X Hh
25%
Describe what a pedigree chart will look like if a recessive trait is being passed through a family.
The trait will skip a generation.
How an organism looks or behaves.
Phenotype
Traits such as skin color and height which result from multiple genes.
Polygenic Traits
A picture of one person's chromosomes.
Karyotype
Blood type is an example of this type of multi-gene inheritance.
Codominance.