What is an allele?

• An alternative form of a mutation

• A section of a chromosome that gives instructions for one gene

• Determining blood type and color vision

• An entire chromosome in the human body

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Looking at this picture, there are alleles for which trait on this chromosome?

• Just white flowers

• Just purple flowers

• Homologous chromosomes

• Flower color

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NGSS.HS-LS3-1

When studying genetics, what kind of trait are you studying?

• Inherited traits

• Acquired traits

• Disease traits

• Color traits

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many alleles do you have for each gene in your body?

• 46

• 23

• 2

• 1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How does the body know which alleles to read?

• Mom's alleles are always read first

• Dad's alleles are always read first

• By paying attention to dominant and recessive genes

• There is a mix of alleles

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NGSS.HS-LS3-1

How do geneticists write a dominant allele?

• Assign the allele a random letter and write a lowercase

• Assign the allele a random letter and write a capital

• In cursive

• By writing two capital letters

How do geneticists write a recessive allele?

• In cursive

• Assign the allele a random letter and write a capital

• Assign the allele a random letter and write a lowercase

• By writing two capital letters

Is Gh a valid genotype?

• No, because g and h are two different letters

• Yes, because there are two different letters

• No, because you can't have a dominant and a recessive

• Yes, because that is the trait for ghostly white skin

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NGSS.HS-LS1-1

When will ribosomes read the dominant allele?

• In hot weather

• Dominant alleles are never read by ribosomes

• A dominant allele is only read if there is also a recessive one

• A dominant allele is always read and made by the body if it exists

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NGSS.HS-LS3-2

Fill in the blank: The dominant allele always _________.

• takes over

• is covered up

• hides

• takes time