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Cell Biology and Genetics

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Questions and Answers

What is the result of non-disjunction during meiosis?

Separation of homologous chromosomes

Nondisjunction of sister chromatids

Gametes with an abnormal number of chromosomes (correct)

Increased telomere length

What is the function of telomeres in stem cells?

To promote DNA replication

To protect the chromosome from deterioration (correct)

To facilitate mitosis

To increase gene expression

What is the purpose of homologous chromosomes?

To facilitate crossing over during meiosis (correct)

To increase genetic variation

To ensure genetic continuity

To regulate gene expression

How do stem cells contribute to sex determination?

They do not contribute to sex determination Signup and view all the answers

What is the significance of diploma pens and plaid in relation to meiosis and stem cells?

They are not relevant to meiosis and stem cells Signup and view all the answers

During which stage of meiosis do homologous chromosomes separate and move to opposite poles of the cell?

Anaphase I Signup and view all the answers

What is the term for the error that occurs when a pair of chromosomes fails to separate during meiosis?

Non-disjunction Signup and view all the answers

Which of the following is an example of a syndrome caused by a non-disjunction error during meiosis?

Trisomy 21 Signup and view all the answers

What is the primary function of telomeres in stem cells?

To protect the ends of chromosomes from degradation Signup and view all the answers

What is the term for the process by which stem cells differentiate into specialized cells?

Differentiation Signup and view all the answers