The correct answer is a) Two homologous chromosomes, each with two chromatids.

Here's the step by step explanation:

1. A tetrad is a unit formed during meiosis (a type of cell division that reduces the number of chromosomes in a cell by half) that consists of four chromatids.

2. These four chromatids come from two homologous chromosomes. Homologous chromosomes are pairs of chromosomes, one from each parent, that are similar in shape and size.

3. Each of these homologous chromosomes replicates to form two chromatids. Therefore, two homologous chromosomes, each with two chromatids, come together to form a tetrad.

4. The formation of tetrads is crucial for the process of genetic recombination or crossing over, where segments of DNA are exchanged between chromatids, leading to genetic variation in offspring.

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The correct answer is a) Two homologous chromosomes, each with two chromatids.

Here's the step by step explanation:

1. A tetrad is a unit formed during meiosis (a type of cell division that reduces the number of chromosomes in a cell by half) that consists of four chromatids.

2. These four chromatids come from two homologous chromosomes. Homologous chromosomes are pairs of chromosomes, one from each parent, that are similar in shape and size.

3. Each of these homologous chromosomes replicates to form two chromatids. Therefore, two homologous chromosomes, each with two chromatids, come together to form a tetrad.

4. The formation of tetrads is crucial for the process of genetic recombination or crossing over, where segments of DNA are exchanged between chromatids, leading to genetic variation in offspring.

Knowee AI · Accepted Answer

The correct answer is a) Two homologous chromosomes, each with two chromatids.

Here's the step by step explanation:

1. A tetrad is a unit formed during meiosis (a type of cell division that reduces the number of chromosomes in a cell by half) that consists of four chromatids.

2. These four chromatids come from two homologous chromosomes. Homologous chromosomes are pairs of chromosomes, one from each parent, that are similar in shape and size.

3. Each of these homologous chromosomes replicates to form two chromatids. Therefore, two homologous chromosomes, each with two chromatids, come together to form a tetrad.

4. The formation of tetrads is crucial for the process of genetic recombination or crossing over, where segments of DNA are exchanged between chromatids, leading to genetic variation in offspring.

Tetrad is made up ofa) Two homologous chromosomes, each with two chromatidsb) Four non-homologous chromatidsc) Four non-homologous chromosomesd) Four homologous chromosomes with four chromatids

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