l2 understanding inheritance

Multiple Choice

Why is understanding genetic inheritance important in predicting traits in offspring?

• It helps us understand how diseases are passed down

• It allows us to predict physical characteristics

• It reveals patterns in family history

• All of the above

Open Ended

Do you think all inherited traits strictly follow Mendel's patterns of inheritance? Why or why not?

Multiple Choice

What is the difference between genotype and phenotype?

• Genotype is the observable trait, phenotype is the genetic makeup

• Genotype is the genetic makeup, phenotype is the observable trait

• Both are the same

• Genotype is always dominant, phenotype is always recessive

Multiple Choice

Which of the following terms describes a situation where both alleles are expressed equally in the phenotype?

• Incomplete dominance

• Codominance

• Polygenic inheritance

• Homozygous

Open Ended

Explain how polygenic inheritance contributes to the diversity of eye color in humans.

Multiple Select

Which of the following are examples of traits influenced by multiple genes?

• Eye color

• Height

• Skin tone

• All of the above

Open Ended

Why do most inherited traits not follow simple Mendelian patterns?

Open Ended

Explain how Punnett squares and pedigrees are used as scientific tools to predict inherited traits. What are the limitations of these tools?

Multiple Choice

Which of the following best describes the difference between genotype and phenotype?

• Genotype is the observable trait, phenotype is the genetic code.

• Genotype is the genetic code, phenotype is the observable trait.

• Genotype and phenotype are the same thing.

• Phenotype determines genotype.

Multiple Select

Which of the following are examples of complex inheritance patterns that go beyond Mendel's model?

• Incomplete dominance

• Codominance

• Polygenic inheritance

• Simple dominance

Labelling

In cats, black fur is dominant to white.

If all 3 cats are HETEROZYGOUS, label the pattern of inheritance.

Drag labels to their correct position on the image

Codominance

Mendelian

Incomplete dominance

Drag and Drop

Examine the pedigree to the right. With the information given, Determine the type of genetic inheritance ​ ​ ​

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Drag these tiles and drop them in the correct blank above

autosomal dominant

sex-linked recessive

sex-linked dominant

autosomal recessive

Labelling

Let's pretend the color of cat fur can follow all 3 types of inheritance patterns.

If all 3 cats are HETEROZYGOUS, label the pattern of inheritance.

Drag labels to their correct position on the image

Codominance

Mendelian (complete dominance)

Incomplete dominance

Dropdown

Cystic Fibrosis is a recessive trait. A heterozygous genotype (Cc) will show the phenotype

Select answer

.

Dropdown

A​

Select answer

shows its specific trait when both parents pass thegene to the child.

Match

Match the following

• Gene

• Allele

• Frequency

• Trait

• Adaptation

passed from parent to offspring

two or more versions of a gene

how many times it happens or appears

a specific characteristic

Change in organism. Promotes fitness.

• passed from parent to offspring

• two or more versions of a gene

• how many times it happens or appears

• a specific characteristic

• Change in organism. Promotes fitness.

Match

Match the following terms with their correct example

Complete Dominance

Incomplete Dominance

Codominance

Multiple Alleles

Sex-Linked Traits

• Complete Dominance

• Incomplete Dominance

• Codominance

• Multiple Alleles

• Sex-Linked Traits

Match

Match the following

• sex linked traits

• Linked Traits

• multiple alleles

• polygenic inheritance

traits that are inherited on X chromosomes.

genes on the same chromosome are inherited together

presence of more than two alleles for a trait.

one trait controlled by many genes

• traits that are inherited on X chromosomes.

• genes on the same chromosome are inherited together

• presence of more than two alleles for a trait.

• one trait controlled by many genes

Drag and Drop

When 3 ​

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are possible and a heterozygote is ​

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in appearance, the inheritance pattern is ​

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. When ​

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phenotypes are present, the trait likely includes multiple ​

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(more than 2).

Drag these tiles and drop them in the correct blank above

phenotypes

spotted

codominance

4 or more

alleles

blended

incomplete dominance

Match

Matching

• White-flowered plants crossed with red-flowered plants to produce pink-flowered plants

• White-flowered plants crossed with red-flowered plants to produce white-flowered plants with red dots

• White-flowered plants crossed with red-flowered plants to produce red-flowered plants

incomplete dominance

Codominant

Dominance

• incomplete dominance

• Codominant

• Dominance

Match

Match the following

• Codominance

• Incomplete dominance

• Sex-linked

• Genotype for a female:

• Genotype for a male:

Both alleles are dominant.

Neither allele is dominant.

Trait is linked to the X chromosome

XX

XY

• Both alleles are dominant.

• Neither allele is dominant.

• Trait is linked to the X chromosome

• XX

• XY

Match

Match the following

• Incomplete Dominance

• Codominance

• Multiple Alleles

• Polygenic traits

• Sex-linked inheritance

blended 3rd phenotype

3rd phenotype that has 2 dominant traits that are separate and independent

more than 2 alleles per gene

2 or more traits control a single phenotype

traits that are carried on the X chromosome

• blended 3rd phenotype

• 3rd phenotype that has 2 dominant traits that are separate and independent

• more than 2 alleles per gene

• 2 or more traits control a single phenotype

• traits that are carried on the X chromosome

Dropdown

Because pea plants can ​

Select answer

one plant is able to fertilize another.

Match

Match the following heterozygous genotypes to their inheritance pattern:

• Sex-Linked

• Incomplete Dominance

• Codominance

• Complete Dominance

• Blood Type

X^HX^h

RR'

AB

Aa

I^Ai

I^Bi

I^AI^B

• X^HX^h

• RR'

• AB

• Aa

• I^Ai

  I^Bi

  I^AI^B

Match

Match the following.

• A black cat and a white cat have kittens that are all black.

• A black cat and a white cat have kittens that are tuxedo (both black and white).

• A black cat and a white cat have gray kittens.

Complete Dominance

Codominance

Incomplete Dominance

• Complete Dominance

• Codominance

• Incomplete Dominance

Match

Match the following

• All traits

• Identical twins

• Fraternal Twins

• A dominant trait

• An allele is

are not visible to the naked eye

1 egg - 1 sperm

Two eggs

Two sperm

hides a recessive trait

a version of a gene

• are not visible to the naked eye

• 1 egg - 1 sperm

• Two eggs

  Two sperm

• hides a recessive trait

• a version of a gene

Match

Match the following descriptions with the correct genetic phenomenon.

• incomplete dominance

• codominance

• multiple alleles

• polygenic trait

Situation where a heterozygote expresses a phenotype that is intermediate between the two homozygous parents

Situation in which the phenotypes produced by both alleles are equally and completely expressed

Presence of more than two alleles for a genetic trait

Trait that is controlled by multiple genes

• Situation where a heterozygote expresses a phenotype that is intermediate between the two homozygous parents

• Situation in which the phenotypes produced by both alleles are equally and completely expressed

• Presence of more than two alleles for a genetic trait

• Trait that is controlled by multiple genes

Match

Match the following

• Different form of a trait

• The gene make-up of a trait expressed as a set of capital and lower case letters

• The physical presentation of the genetic expression

• The trait that expresses itself over another

• The trait that is masked or hidden by the dominant trait

Allele

Genotype

Phenotype

Dominant

Recessive

• Allele

• Genotype

• Phenotype

• Dominant

• Recessive

Multiple Choice

If you cross a black chicken with a white chicken, only checkered chickens would be produced.  What kind of inheritance pattern does this follow?

• incomplete Dominance
• Co-Dominance

Multiple Choice

this image is an example of

• codominance
• dominance
• incomplete dominance

Multiple Choice

this image is an example of

• codominance
• dominance
• incomplete dominance

Multiple Choice

There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?

• Dominant
• Recessive

Multiple Choice

What does this Punnett square and the probabilities of the ofspring represent?

• incomplete dominance

• codominance

Multiple Choice

What type of heredity is shown in the pedigree?
(hint: check your notes - "modes of inheritance")

• Sex-Linked Dominant
• Sex-Linked Recessive
• Autosomal Dominant
• Autosomal Recessive 

Multiple Choice

In this pedigree, the shading represents people in the family with dark hair while the unshaded represents blondes. Is dark hair controlled by a dominant or recessive allele?

• Dominant

• Recessive

Multiple Choice

This is an example of what?

• Complete dominance
• Incomplete dominance
• Codominance
• None of the above

Multiple Choice

Genetic traits are passed from ________ to ________.

• parent; offspring
• chromosomes; traits
• DNA; genes
• offspring; parents

Open Ended

Reflecting on what you've learned about genetic inheritance, what is one question you still have or something you would like to know more about?