Podcast
Questions and Answers
What is a mutation in genetics?
What is a mutation in genetics?
- A change in the DNA at a particular Locus in an organism (correct)
- A change in the sequence of amino acids
- A change in the structure of a protein
- A change in the function of a gene
At what level does a mutation occur?
At what level does a mutation occur?
- Tissue level
- Cellular level
- Molecular level (correct)
- Organism level
What is affected by a mutation?
What is affected by a mutation?
- The DNA at a particular Locus (correct)
- The sequence of amino acids
- The structure of a protein
- The function of a gene
What is changed in a mutation?
What is changed in a mutation?
Where does a mutation occur in an organism?
Where does a mutation occur in an organism?
What is Turner syndrome classified as?
What is Turner syndrome classified as?
What is the genetic defect that causes Turner syndrome?
What is the genetic defect that causes Turner syndrome?
What is the karyotype of Turner syndrome?
What is the karyotype of Turner syndrome?
What is the effect of Turner syndrome on the affected individual?
What is the effect of Turner syndrome on the affected individual?
Which of the following is NOT a characteristic of Turner syndrome?
Which of the following is NOT a characteristic of Turner syndrome?
What is the Rh system based on?
What is the Rh system based on?
What is the most common scenario in the Rh system?
What is the most common scenario in the Rh system?
What happens if the Rhesus antigen is present on the red blood cell membrane?
What happens if the Rhesus antigen is present on the red blood cell membrane?
What is another name for the Rh system?
What is another name for the Rh system?
What determines whether a person is Rh positive or Rh negative?
What determines whether a person is Rh positive or Rh negative?
What is the classification of Trisomy 21?
What is the classification of Trisomy 21?
What is Trisomy 21 also known as?
What is Trisomy 21 also known as?
What type of disorder is Trisomy 21 classified as?
What type of disorder is Trisomy 21 classified as?
What is a characteristic of Trisomy 21?
What is a characteristic of Trisomy 21?
Which of the following is NOT a characteristic of Trisomy 21?
Which of the following is NOT a characteristic of Trisomy 21?
What is the first step in genetic engineering?
What is the first step in genetic engineering?
Which step comes after inserting the gene in a host?
Which step comes after inserting the gene in a host?
What is the purpose of step 4 in genetic engineering?
What is the purpose of step 4 in genetic engineering?
What comes before producing as many copies of the host as possible?
What comes before producing as many copies of the host as possible?
What is the correct order of the basic steps in genetic engineering?
What is the correct order of the basic steps in genetic engineering?
Study Notes
Genetics
- Mutation: a change in the DNA at a particular locus in an organism.
Genetic Syndromes
- Trisomy 21 (Down syndrome): the most common chromosomal disorder.
- Turner syndrome (45,X0): a primary hypogonadism in phenotypic females, resulting from partial or complete monosomy of the short arm of the X-chromosome.
Blood Type Systems
- Rh system (Rhesus) or D antigen: based on the presence or absence of a certain antigen on the red blood cell membrane surface.
- If the antigen is present, the blood cell is Rh positive and has no antibodies against it (most common scenario).
Genetic Engineering
- Basic steps:
- Isolate the gene
- Insert it in a host using a vector
- Produce as many copies of the host as possible
- Separate and purify the product of the gene
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Description
Explore the concept of mutations, a change in the DNA at a particular locus in an organism, and test your understanding of genetics.
