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Homologous chromosomes play a crucial role in maintaining genetic diversity and stability, which can help prevent certain genetic diseases. During meiosis, they undergo recombination, allowing for the exchange of genetic material, which can eliminate harmful mutations and promote beneficial variations. This process enhances the resilience of populations to diseases by ensuring that individuals inherit a diverse set of alleles, which can improve adaptability and resistance to pathogens. Additionally, the presence of homologous chromosomes allows for error correction during DNA replication and repair, further reducing the risk of disease-causing mutations.

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1w ago

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How many chromozones do humans have?

A normal, healthy Human will have 46 chromosomes; 23 from the mother, and 23 from the father. Various diseases can increase this number however due to the chromosomes replicating too much


What might a laboratory worker attempting to diagnose a genetic disorder perfer to work with photographs of chromosomes rather than the chromosomes themselves?

to prevent damage to actual chromosome


What would happen if the chromosomes were not in the middle during cell division?

If chromosomes are not properly aligned in the middle during cell division, it can lead to unequal distribution of genetic material between the daughter cells. This misalignment can result in aneuploidy, where one cell may receive too many or too few chromosomes, potentially causing developmental issues or diseases such as cancer. Additionally, improper segregation can trigger cell cycle checkpoints, leading to cell cycle arrest or apoptosis to prevent the propagation of errors.


What does a nondisjunction involve?

it occurs when the chromosomes during meiosis do not separate correctly and then it results in a gamete or egg cell too have too few or too many chromosomes. This can lead to different diseases.


Briefly state what chromosomes contain and what they determine in organisms?

Chromosomes contain genetic material, specifically DNA, that carries the instructions for building and maintaining an organism. They determine traits such as physical characteristics, behavior, and susceptibility to diseases.