Heredity, Reproduction, and Punnett Square Check

Complete the following questions. Use your notes if you need assistance. You can submit this as many times as you need, but it must be done within the class period.

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2

Who was Gregor Mendel? Check ALL that apply.

He is known as the father of modern archaeology.

He was a monk who changed the way people thought about inheritance.

His experiments provided evidence that each parent gives one set of instructions to their offspring.

He is well known for his experiments on tomato plants.

3

Select ALL of the follwoing that are true about Sexual Reproduction.

fish, amphibians, and mammals can reproduce this way

offspring is produced by only ONE parent

it is more time intensive

specific forms include budding, fragmentation, and binary fission

offspring are unique and look differnt from parents

genetic variation from the parent can come from mutations in the DNA of the offspring

offspring is produced by TWO parents genetically combining

bacteria, yeast, hydra, and flatworms can reproduce this way

3

Select ALL of the follwoing that are true about Asexual Reproduction.

offspring is produced by only ONE parent

offspring are identical to their parents

organisms who reproduce this way can reproduce in as little as 20 minutes

genetic variation from the parent can come from mutations in the DNA of the offspring

specific forms include budding, fragmentation, and binary fission

bacteria, yeast, hydra, and flatworms can reproduce this way

offspring is produced by TWO parents genetically combining

fish, amphibians, and mammals can reproduce this way

1

What is a trait?

an inherited physical characteristics passed from parent to offspring.

the passing of traits from parents to offspring

a piece of DNA that controls the development of one or more traits

a different form of a gene

1

What is Heredity?

a piece of DNA that controls the development of one or more traits

a different form of a gene

the passing of traits from parents to offspring

a characteristic of an organism

1

What is a gene?

a different form of a gene

the passing of traits from parents to offspring

a characteristic of an organism

a section of DNA that controls the development of one or more traits

1

What is an Allele?

a piece of DNA that controls the development of one or more traits

a characteristic of an organism

a different form or version of a gene

the passing of traits from parents to offspring

1

TRUE OR FALSE: You get one allele for a trait from you mom, and one from you dad.

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1

TRUE OR FALSE: Recessive alleles will only express a trait when there are NO dominant alleles.

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1

Fill in the blank: _________________ Alleles - An allele that covers another allele.

dominant

recessive

homozygous

heterozygous

1

Fill in the blank: ______________________ Alleles - An allele that is covered, or hidden by another allele.

dominant

recessive

homozygous

heterozygous

1

Which TWO of the following are correct?

a lower case letter = the domanint allele

an upper case letter = the domanint allele

a lower case letter = the resessive allele

an upper case letter = the resessive allele

1

Which of the following is the correct defintion of Genotype?

a type of chromosome

the number of genes an organism contains

an organisms genetic makeup – the combination of alleles

an organisms outward appearance or behavior

1

Which of the following is the correct defintion of Phenotype?

an organisms genetic makeup – the combination of alleles

an organisms outward appearance or behavior

the number of genes an organism contains

a type of chromosome

1

Select ALL the following that are examples of a Genotype.

1

Select ALL the following that are examples of a Phenotype.

1

Select ALL the following staments that are true.

If the two alleles are different, its Genotype is homozygous

If the two alleles are the same, its Genotype is homozygous

If the two alleles are different, its Genotype is heterozygous

If the two alleles are the same, its Genotype is heterozygous

1

What is a punnett square?

A model used to show the cross of true-breeding pea plants.

A model used to determine exact genotypes of offspring.

A model used to predict possible genotypes of offspring.

None of the choices are correct.

Directions: Black is the DOMINANT fur color for rabbits and white is the recessive. B stands for the black allele and b represents the white allele. A white rabbit would have a genotype of bb and a black rabbit could have a genotype of BB or Bb.

2

Complete the following Punnett square below.

2

Complete the following Punnett square below.

1

A heterozygous tall (Tt) pea plant with a heterozygous tall (Tt) pea plant were crossed. Note: tt indicates a short plant. The punnet square is below. What are the correct ratios and percentages of the offspring's genotypes?

TT= 1/4= 25%, Tt= 1/2= 50%, tt= 1/4= 25%

Tt= 1/2= 50%, tt= 1/2= 50%

Tt= 1/2= 75%, tt= 1/4= 25%

TT= 1/2= 50%, Tt= 1/2= 50%, tt= 1/4= 25%

1

A heterozygous tall (Tt) pea plant with a heterozygous tall (Tt) pea plant were crossed. Note: tt indicates a short plant. The punnet square is below. What are the correct ratios and percentages of the offspring's phenotypes?

Tall= 3/4= 75% , Short= 1/4= 25%

Tall= 1/4= 25% , Short= 3/4= 75%

Tall= 1/2= 50% , Short= 1/2= 50%

Tall= 4/4= 100%