Cell Growth and Reproduction-Meiosis

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Biology
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is meiosis?
Back
Meiosis is a type of cell division that reduces the chromosome number by half, creating four genetically diverse haploid cells from one diploid cell. It is essential for sexual reproduction.
2.
FLASHCARD QUESTION
Front
What is the diploid number?
Back
The diploid number (2n) is the total number of chromosomes in a somatic cell, which includes two sets of chromosomes, one from each parent.
3.
FLASHCARD QUESTION
Front
What is the haploid number?
Back
The haploid number (n) is the number of chromosomes in a gamete (sperm or egg cell), representing one set of chromosomes.
4.
FLASHCARD QUESTION
Front
What occurs during prophase 1 of meiosis?
Back
During prophase 1, homologous chromosomes pair up and exchange genetic material through a process called crossing over, leading to genetic variation.
5.
FLASHCARD QUESTION
Front
What is crossing over?
Back
Crossing over is the exchange of genetic material between homologous chromosomes during prophase 1 of meiosis, which increases genetic diversity.
6.
FLASHCARD QUESTION
Front
What is the significance of genetic variation?
Back
Genetic variation is important for evolution and adaptation, as it provides a population with a diverse set of traits that can be advantageous in changing environments.
7.
FLASHCARD QUESTION
Front
What happens during metaphase 1 of meiosis?
Back
During metaphase 1, homologous chromosome pairs align at the cell's equatorial plane, preparing for separation.
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