Meiosis

Front

What is meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four genetically diverse sex cells (gametes).

Front

What is the main purpose of meiosis?

Back

The main purpose of meiosis is to produce gametes for sexual reproduction, ensuring genetic diversity through recombination and independent assortment.

Front

How many rounds of division occur in meiosis?

Back

Meiosis consists of two rounds of division: meiosis I and meiosis II.

Front

What are the end products of meiosis?

Back

The end products of meiosis are four genetically different haploid cells, known as gametes.

Front

What is the difference between mitosis and meiosis?

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Mitosis produces two identical diploid cells, while meiosis produces four genetically different haploid cells.

Front

What is crossing over and when does it occur?

Back

Crossing over is the exchange of genetic material between homologous chromosomes that occurs during prophase I of meiosis, increasing genetic variation.

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What is independent assortment?

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Independent assortment is the random distribution of homologous chromosomes to the gametes during meiosis, contributing to genetic diversity.

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What are homologous chromosomes?

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Homologous chromosomes are pairs of chromosomes, one from each parent, that are similar in shape, size, and genetic content.

Front

What is a gamete?

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A gamete is a haploid reproductive cell (sperm or egg) that can fuse with another gamete during fertilization to form a diploid zygote.

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What does 'haploid' mean?

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Haploid refers to a cell that contains one complete set of chromosomes (n), as opposed to diploid cells, which have two sets (2n).