Exploring Punnett Square Fundamentals

What is a trait in genetics?

• A type of genetic disorder

• A characteristic passed from parent to offspring

• A specific type of gene

• A tool used in genetic engineering

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What does an allele represent?

• A dominant trait

• A variant form of a gene

• A recessive trait

• A type of genetic mutation

If both alleles are dominant, what phenotype results?

• Mixed phenotype

• Recessive phenotype

• Dominant phenotype

• Cannot be determined

Tags

NGSS.HS-LS3-1

What is the genotype of a heterozygous trait?

• Two dominant alleles

• Two recessive alleles

• None of the above

• One dominant and one recessive allele

Tags

NGSS.HS-LS3-2

How is a recessive trait typically represented in genetics?

• With a number

• With a symbol

• With a capital letter

• With a lowercase letter

What is the first step in setting up a Punnett square?

• Predict the possible outcomes

• Write the genotype of the offspring

• Draw the Punnett square box

• Determine the phenotype percentages

How do you fill in a Punnett square?

• Using the genotypes of the parents

• Randomly assign alleles

• Based on dominant traits only

• Using environmental factors

In the provided example, what is the genotype of the homozygous parent?

• Tt

• None of the above

• TT

• tt

What percentage of offspring will have red flowers in the example?

• 75%

• 50%

• 25%

• 100%

Tags

NGSS.HS-LS3-3

Which scenario describes a heterozygous genotype?

• Two dominant alleles

• Cannot be determined

• Two recessive alleles

• One dominant and one recessive allele