The plant that Mendel studied
Pea Plant
Organisms that have two different alleles for a trait are called
What is hybrid or heterozygous
What is the first thing that Mr. Saint Louis says to do when reading a genetic crossword problem?
Make a key
This is a chart used to find all possible allele combinations in a cross.
Punnet Square
The scientific study of heredity is also called this
Genetics
What was Mendel's first name?
Gregory
Purebred or "same" means the same as this
What is homozygous
A trait that will ALWAYS show up in an organism as long as this is present
What is a dominant allele
A dihybrid cross consists of what?
Two traits with 4 alleles...
Mendel's laws tell us that traits/alleles have the ability to do what?
Independently segregate. Every child has the chance to get every combination of genes
When a child shows traits that is a blend of their parent's trait
What is codominance
These are different forms of a gene
Alleles
What information is absolutely essential to a Punnett Square?
Parent Genotype
R is for Red and r is for white. What is the genotype of a cross of a homozygous dominant and a heterozygous?
What is RR x Rr
What is the passing of traits from parent to offspring?
What is heredity
Mendel went to the movies and saw 101 dalmatians and got mad amped when he saw the dogs because they're a perfect example of what type of dominance?
Incomplete Dominance
This refers to an organism's Physical Characteristics
Phenotype
Can you know a person's genotype if they are dominant in their phenotype?
What is no because they could be RR or Rr
Explain the difference between HH, Hh and hh.
HH: homozygous dominant Hh: heterozygous hh: homozygous recessive. They all share one trait.
This shows the likelihood that certain possible outcomes will occur when you cross two organisms. It is represented by a ratio
What is probability
Mendel discovered that this type of traitor allele could only show if it paired with another trait that was the same type.
What is a recessive trait?
The form of a gene; the letters
Genotype
The result of crossing a homozygous tall pea plant with a homozygous short pea plant
What are hybrids
In watermelons, the gene for a solid green color is dominant (G) over its allele for striped color(g). Also, the gene for round shape (R) is dominant over its allele for oval shape (r). You cross a plant that had striped, oval watermelons with a plant that is heterozygous for both shape and color. What are the (FOIL)ed games of the parental groups
striped, oval: ggrr - (gr,gr,gr,gr)
heterozygous for both: GgRr - (GR,Gr,gR,gr)
What are Mendel's two genetic laws and why are they so important?
The law of segregation and the law of independent assortment. They are important because they contribute to genetic diversity.