Podcast
Questions and Answers
Which of the following best describes the relationship between DNA, genes, and chromosomes?
Which of the following best describes the relationship between DNA, genes, and chromosomes?
- Chromosomes are made of genes, and genes are made of DNA.
- Chromosomes are made of DNA, and genes are segments of DNA. (correct)
- Genes are made of chromosomes, and chromosomes are made of DNA.
- DNA is made of chromosomes, and chromosomes are made of genes.
A gene is a long strand of DNA that wraps around histones to form a chromosome.
A gene is a long strand of DNA that wraps around histones to form a chromosome.
False (B)
What is the primary component that chromosomes and genes are made of?
What is the primary component that chromosomes and genes are made of?
DNA
A chromosome consists of a long strand of __________ wrapped around __________.
A chromosome consists of a long strand of __________ wrapped around __________.
What is the role of histones in the context of chromosomes?
What is the role of histones in the context of chromosomes?
An allele is a type of chromosome responsible for encoding specific traits.
An allele is a type of chromosome responsible for encoding specific traits.
Define what an allele is in relation to a gene.
Define what an allele is in relation to a gene.
A __________ is a specific form of a gene that is responsible for variations in how a trait is expressed.
A __________ is a specific form of a gene that is responsible for variations in how a trait is expressed.
If a gene encodes for hair color, what does an allele of that gene determine?
If a gene encodes for hair color, what does an allele of that gene determine?
All genes on a chromosome encode for the same type of trait.
All genes on a chromosome encode for the same type of trait.
What is the functional role of a gene?
What is the functional role of a gene?
A gene is a short segment of __________ which __________ for specific characteristics.
A gene is a short segment of __________ which __________ for specific characteristics.
Which of the following is the correct order of organization, from smallest to largest?
Which of the following is the correct order of organization, from smallest to largest?
Each chromosome contains only one gene.
Each chromosome contains only one gene.
Explain the role of DNA in both genes and chromosomes.
Explain the role of DNA in both genes and chromosomes.
A __________ is the specific location of a gene on a __________.
A __________ is the specific location of a gene on a __________.
Why is it important for DNA to be wrapped around histones to form chromosomes?
Why is it important for DNA to be wrapped around histones to form chromosomes?
An allele is always dominant and will always be expressed in the phenotype.
An allele is always dominant and will always be expressed in the phenotype.
What is the relationship between a gene and a trait?
What is the relationship between a gene and a trait?
Histones are __________ that help to package and condense __________ into chromosomes.
Histones are __________ that help to package and condense __________ into chromosomes.
Flashcards
DNA, Genes, and Chromosomes
DNA, Genes, and Chromosomes
Chromosomes and genes are composed of DNA; chromosomes are long DNA strands wrapped around proteins called histones, while genes are short segments of DNA.
Allele
Allele
Specific form of a gene responsible for variations in how a trait is expressed.
Chromosome
Chromosome
A long DNA strand wrapped around proteins called histones.
Gene
Gene
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Study Notes
- Chromosomes and genes consist of DNA.
- A chromosome constitutes a long DNA strand coiled around histones.
- A gene represents a short DNA segment encoding specific characteristics.
- An allele denotes a specific gene form that accounts for variations in trait expression.
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