Explain how the discovery of the double helix structure changed our understanding of genetic inheritance.

It explained how DNA replicates and passes traits.

It showed DNA is made of proteins.

It proved all traits are acquired.

It showed DNA is not important.

Which sequence correctly shows the flow of genetic information in a cell?

DNA $$\rightarrow$$ RNA $$\rightarrow$$ Protein

Protein $$\rightarrow$$ RNA $$\rightarrow$$ DNA

RNA $$\rightarrow$$ DNA $$\rightarrow$$ Protein

Protein $$\rightarrow$$ DNA $$\rightarrow$$ RNA

Describe one way the model of DNA structure has changed since it was first proposed.

The directionality and antiparallel nature of strands were clarified.

It is now known to be a triple helix.

It is circular in all organisms.

A mutation changes a base in a DNA sequence from A to T. What effect could this have on the protein produced?

It could change one amino acid in the protein

It will always stop protein production

It will double the protein size

Why was the discovery of base pairing important for understanding DNA replication?

It explained how DNA could be copied accurately.

It showed DNA is made of lipids.

It proved DNA is a single strand.

It showed DNA is not genetic material.

How can two brown-eyed parents have a blue-eyed child?

Both parents must carry a recessive allele for blue eyes.

Only one parent needs the blue allele.

A scientist wants to determine if a DNA sample is from a plant or an animal. Which feature should they analyze?

The sequence of nitrogenous bases

Evaluate how the contributions of Franklin and Wilkins were essential to the development of the DNA model.

Their X-ray images revealed the helical structure.

They provided the first protein synthesis model.

They discovered the genetic code.

They proved DNA is made of RNA.

A population of rabbits shows a wide variety of fur colors. Explain how this diversity arises at the genetic level.

Different combinations of alleles are expressed.

All rabbits have the same alleles.

Only dominant alleles are present.

Mutations do not affect fur color.

Analyze how the understanding of DNA’s structure has influenced modern biotechnology.

It allowed for genetic engineering and gene therapy.

It stopped all genetic research.

It proved proteins are not important.

A child has a genetic disorder that neither parent shows symptoms of. What is the most likely explanation?

Both parents are carriers of a recessive allele.

The child is not related to the parents.

The disorder is caused by the environment.

A mutation occurs in the DNA sequence coding for a protein. Predict how this could affect the protein’s function.

The protein may not function properly or at all.

The protein will always function better.

The protein will become a carbohydrate.

The mutation will have no effect.

Discuss how the discovery of the DNA double helix has impacted our understanding of heredity and disease.

It has helped explain how traits and diseases are inherited.

It has not changed our understanding.

It proved all diseases are caused by bacteria.

It showed proteins are not important.

A family has a history of a certain genetic trait. How can genetic testing help predict the likelihood of this trait appearing in future generations?

By identifying the alleles present in family members

By changing the alleles in family members

By preventing all genetic disorders

By ensuring only dominant traits are passed on

DNA & Genetics Test Review

Authored by Shannon Sandridge

Science

10th Grade

VA covered

Used 3+ times

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45 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the basic unit that makes up the structure of DNA?

Amino acid

Nucleotide

Fatty acid

Monosaccharide

Tags

VA.BIO.5.a.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who were the scientists credited with proposing the double helix model of DNA?

Darwin and Mendel

Watson and Crick

Franklin and Wilkins

Avery and Hershey

Tags

VA.BIO.5.b.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are different forms of a gene called?

Chromosomes

Alleles

Codons

Loci

Tags

VA.BIO.5.c.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which nitrogenous base pairs with adenine in DNA?

Guanine

Thymine

Cytosine

Uracil

Tags

VA.BIO.5.a.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which scientist’s X-ray diffraction images were critical in identifying the structure of DNA?

Rosalind Franklin

Gregor Mendel

Charles Darwin

Barbara McClintock

Tags

VA.BIO.5.b.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term for the physical expression of a trait in an organism?

Genotype

Phenotype

Chromosome

Genome

Tags

VA.BIO.5.c.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which component forms the backbone of the DNA molecule?

Phosphate and sugar

Nitrogenous bases

Amino acids

Fatty acids

Tags

VA.BIO.5.a.

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DNA & Genetics Test Review

What is the basic unit that makes up the structure of DNA?

Who were the scientists credited with proposing the double helix model of DNA?

What are different forms of a gene called?

Which nitrogenous base pairs with adenine in DNA?

Which scientist’s X-ray diffraction images were critical in identifying the structure of DNA?

What is the term for the physical expression of a trait in an organism?

Which component forms the backbone of the DNA molecule?

Which year did Watson and Crick publish their model of DNA?

If an organism has two identical alleles for a trait, what is it called?

Which process describes the synthesis of proteins from mRNA?

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