Exercise
Form 13: Errors in Cell Division and Abnormal Chromosome Counts
In this engaging exercise, students will explore the fascinating world of cell division by investigating the causes and consequences of errors that lead to abnormal chromosome counts, including conditions like Down syndrome and Turner syndrome. Through interactive activities, they will learn to identify these chromosomal abnormalities and understand their impact on human development and health.
Questions
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MultiChoice
What is the failure of chromosomes to separate properly during cell division called?
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MultiChoice
What can nondisjunction during meiosis produce?
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MultiChoice
Which genetic condition is caused by having three copies of chromosome 21 (Trisomy 21)?
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MultiChoice
If a human egg cell receives 24 chromosomes due to nondisjunction and is fertilized by a normal sperm (23), how many chromosomes will the zygote have?
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MultiChoice
Uncontrolled cell division caused by mutations in cell cycle regulatory genes can lead to...
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MultiChoice
What is a mass of rapidly dividing, abnormal cells called?
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MultiChoice
What normal cellular process causes damaged or unneeded cells to self-destruct?
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MultiChoice
If a human gamete missing one chromosome (22) fertilizes a normal gamete (23), how many total chromosomes will the zygote have?
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MultiChoice
During which phase(s) of meiosis can nondisjunction occur?
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MultiChoice
What substances or environmental factors (such as UV radiation or tobacco smoke) increase cell division errors leading to cancer?
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MultiChoice
Cell cycle checkpoints monitor division to prevent...
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MultiChoice
What term describes a cell having an abnormal number of individual chromosomes?