Podcast
Questions and Answers
What is the consequence of non-disjunction during meiosis?
What is the consequence of non-disjunction during meiosis?
Which chromosome abnormality can result in Down Syndrome?
Which chromosome abnormality can result in Down Syndrome?
Why are older parents advised to undergo prenatal testing like amniocentesis?
Why are older parents advised to undergo prenatal testing like amniocentesis?
What characteristic distinguishes individuals with Down Syndrome?
What characteristic distinguishes individuals with Down Syndrome?
Signup and view all the answers
How does non-disjunction lead to Down Syndrome?
How does non-disjunction lead to Down Syndrome?
Signup and view all the answers
What is the result of non-disjunction during Anaphase II?
What is the result of non-disjunction during Anaphase II?
Signup and view all the answers
Which type of chromosome mutation can lead to Down Syndrome?
Which type of chromosome mutation can lead to Down Syndrome?
Signup and view all the answers
Why are older parents, especially mothers, advised to undergo prenatal testing?
Why are older parents, especially mothers, advised to undergo prenatal testing?
Signup and view all the answers
What genetic condition is characterized by an extra chromosome 21?
What genetic condition is characterized by an extra chromosome 21?
Signup and view all the answers
How does non-disjunction contribute to the likelihood of Down Syndrome?
How does non-disjunction contribute to the likelihood of Down Syndrome?
Signup and view all the answers
What specific maternal age factor increases the likelihood of non-disjunction?
What specific maternal age factor increases the likelihood of non-disjunction?
Signup and view all the answers
Why are older parents advised to undergo prenatal testing like amniocentesis?
Why are older parents advised to undergo prenatal testing like amniocentesis?
Signup and view all the answers
What is characteristic of individuals with Down Syndrome?
What is characteristic of individuals with Down Syndrome?
Signup and view all the answers
What is the specific error known as non-disjunction in meiosis?
What is the specific error known as non-disjunction in meiosis?
Signup and view all the answers
How many chromosomes are present in a gamete resulting from non-disjunction of chromosome pair 21?
How many chromosomes are present in a gamete resulting from non-disjunction of chromosome pair 21?
Signup and view all the answers
What is the genetic condition resulting from an extra copy of chromosome 21?
What is the genetic condition resulting from an extra copy of chromosome 21?
Signup and view all the answers
In humans, which parental age factor increases the likelihood of non-disjunction?
In humans, which parental age factor increases the likelihood of non-disjunction?
Signup and view all the answers
What is the outcome when an abnormal gamete (with 24 chromosomes) fuses with a normal gamete (with 23 chromosomes)?
What is the outcome when an abnormal gamete (with 24 chromosomes) fuses with a normal gamete (with 23 chromosomes)?
Signup and view all the answers
What specific phase of meiosis does non-disjunction primarily occur in?
What specific phase of meiosis does non-disjunction primarily occur in?
Signup and view all the answers
What is the result of non-disjunction during Anaphase I?
What is the result of non-disjunction during Anaphase I?
Signup and view all the answers
What type of testing is recommended for older parents to detect chromosomal abnormalities in the fetus?
What type of testing is recommended for older parents to detect chromosomal abnormalities in the fetus?
Signup and view all the answers
