Punnett Square Punnett Square, too! ___gousDo the Math Hodge- podge

Punnett Square – 100 A four-sided tool used for predicting traits Punnett Square

Punnett Square- 200 What’s the first step in solving the following problem? If you cross a homozygous dominant purple pea plant with a heterozygous pea plant, what’s the probability of the offspring being purple? underline the important information

Punnett Square 300 After underlining, what’s the next step in solving the following problem? If you cross a homozygous dominant purple pea plant with a heterozygous pea plant, what’s the probability of the offspring being purple? Figure out what is dominant and what is recessive

Punnett Square 400 After figuring out what’s dominant and recessive, what’s the next step for solving the problem of: If you cross a homozygous dominant purple pea plant with a heterozygous pea plant, what’s the probability of the offspring being purple? Labeling for mom and dad or plant 1 or plant 2, etc.

Punnett Square- 500 What’s the last step before making the cross to complete a Punnett Square? Place alleles (genotypes) on the top and side of the square

Punnett Square, Too!- 100 Cross a homozygous brown- eyed man with a homozygous brown-eyed woman. Brown is dominant. Use the letter ‘B’. BB BB B B

Punnett Square, Too! Cross a heterozygous brown- eyed man with a blue-eyed woman. Brown is dominant. Use the letter ‘B’. Bbbb Bb bb Bb b b

Punnett Square, Too!- 300 Cross a blue-eyed woman with a blue-eyed man. Use the letter ‘B’. bb bb b b

Punnett Square, Too!- 400 Cross a purebred purple pea plant with a hybrid pea plant. Purple is dominant. Use the letter ‘P’ PP Pp PP P p

Punnett Square, Too!- 500 Cross a heterozygous purple pea plant with a white pea plant. Purple is dominant. Use the letter ‘P’ Pppp Pp pp Pp p p

_______gous – 100 Two alike alleles are known as homozygous

_______gous A genotype with different alleles is known as Heterozygous

______gous HH, for example Homozygous dominant

______gous hh, for example homozygous recessive

_____gous When two chromosomes on a chromatid are alike, it’s called….. homologous

Do the Math The likelihood that an event will occur Probability

Do the Math What is the % probability of the offspring having a heterozygous genotype? 0% BB BB B B

Do the Math Brown is dominant. What is the % probability of the offspring having a phenotype of brown eyes? 50% Bbbb Bb bb Bb b b

Do the Math What is the % probability of the offspring being a hybrid? 50% PP Pp PP P p

Do the Math What is the probability of the offspring being a purebred? Do not express it as a percentage. 1/2 or 1:2 PP Pp P P P p

Hodgepodge Who is the “Father of Genetics”? Gregor Mendel

Hodgepodge What is a pea pod? The outermost casing which holds peas, the delicious round vegetables, in place.

Hodgepodge When Gregor Mendel used only purebred pea plants in his experiments, he was using the principal of: Selective Breeding

Hodgepodge Yellow is recessive. For pea pods, which color would show if you had two recessive alleles? yellow

Hodgepodge What’s the probability of having a yellow pea pod when each parent has a homozygous dominant genotype? Green is dominant 0%