5/5 8 Flashcards
(24 cards)
What is colorblindness?
A condition associated with the X chromosome affecting color perception.
Colorblindness is often more prevalent in males due to its X-linked inheritance.
What is hemophilia?
A genetic disorder that impairs the body’s ability to make blood clots, associated with the X chromosome.
Hemophilia is another example of a sex-linked disorder.
What is Duchenne Muscular Dystrophy?
A sex-linked disorder resulting in progressive weakening and loss of skeletal muscles.
In the U.S., about 1 in 3000 males is born with this condition.
What are chromosomal disorders?
Disorders caused by abnormalities in chromosome number or structure.
Examples include Down syndrome and Turner syndrome.
What is nondisjunction?
An error in meiosis where homologous chromosomes fail to separate, leading to abnormal chromosome numbers.
This can result in various genetic disorders.
What is gene therapy?
A technique where an absent or faulty gene is replaced by a normal, working gene to correct disorders.
The Human Genome Project is expected to advance gene therapy techniques.
What does the Human Genome Project contribute to?
Advancements in gene therapy and understanding genetic disorders.
It aims to map all human genes and their functions.
Fill in the blank: A chromosomal disorder can be caused by _______.
nondisjunction
True or False: Duchenne Muscular Dystrophy affects both genders equally.
False
What is the expected outcome of gene therapy?
The body can correct the protein it needs and eliminate the disorder.
This approach aims to restore normal function at the genetic level.
What percentage of males is affected by Duchenne Muscular Dystrophy in the U.S.?
Approximately 1 in 3000 males.
What is the chromosomal composition of females and males?
Females: XX; Males: XY.
This chromosomal difference is key to understanding sex-linked disorders.
What is colorblindness?
A condition associated with the X chromosome affecting color perception.
Colorblindness is often more prevalent in males due to its X-linked inheritance.
What is hemophilia?
A genetic disorder that impairs the body’s ability to make blood clots, associated with the X chromosome.
Hemophilia is another example of a sex-linked disorder.
What is Duchenne Muscular Dystrophy?
A sex-linked disorder resulting in progressive weakening and loss of skeletal muscles.
In the U.S., about 1 in 3000 males is born with this condition.
What are chromosomal disorders?
Disorders caused by abnormalities in chromosome number or structure.
Examples include Down syndrome and Turner syndrome.
What is nondisjunction?
An error in meiosis where homologous chromosomes fail to separate, leading to abnormal chromosome numbers.
This can result in various genetic disorders.
What is gene therapy?
A technique where an absent or faulty gene is replaced by a normal, working gene to correct disorders.
The Human Genome Project is expected to advance gene therapy techniques.
What does the Human Genome Project contribute to?
Advancements in gene therapy and understanding genetic disorders.
It aims to map all human genes and their functions.
Fill in the blank: A chromosomal disorder can be caused by _______.
nondisjunction
True or False: Duchenne Muscular Dystrophy affects both genders equally.
False
What is the expected outcome of gene therapy?
The body can correct the protein it needs and eliminate the disorder.
This approach aims to restore normal function at the genetic level.
What percentage of males is affected by Duchenne Muscular Dystrophy in the U.S.?
Approximately 1 in 3000 males.
What is the chromosomal composition of females and males?
Females: XX; Males: XY.
This chromosomal difference is key to understanding sex-linked disorders.
