Heredity, Genetics and Punnett Squares

___________________________ is the study of how traits are passed on, or inherited.

• dominant traits
• ratio
• phenotype
• genetics

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

A ________________________ is used to predict the possible genotype from certain parents

• Mendel Grid
• Genetic Tic Tac Toe
• Punnett Square
• Pedigree Plot

What is a dominant allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different

What is a gene?

• An entire chromosome that  codes for a trait
• a piece of clothing
• a piece of a DNA on chromosome that codes for a trait
• Chemical messengers in your brain that code for a trait

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

_{How many are tall?}

• 0
• 1
• 2
• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the only Genotype that shows the RECESSIVE Phenotype?

• GG
• Gg
• gg

What are the two genotypes that show the DOMINANT Phenotype

• GG, gg
• GG, Gg
• Gg, gg

What is Bb?

• Homozygous
• Heterozygous
• Recessive
• Alleles

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the genotypes of the offspring if the female plant had the alleles PP and a male pea plant with the alleles pp. Draw the punnett square to solve.

P= purple

p= white

• all Pp

• all PP

• 1/4 PP; 2/4 Pp 1/4 pp

• all pp

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

T = tall an t = short

Create a punnett square for crossing parents with the genotype TT and Tt. What would be the phenotype of the offspring?

• 100% short

• 100 % tall

• 50% tall, 50% short

• 75% tall and 25% short

Tags

NGSS.HS-LS3-1