Which term describes chromosomes that pair with their counterpart from the other parent during meiosis?

Which term describes chromosomes that pair with their counterpart from the other parent during meiosis?

• A. Homologous
• B. Sister chromatids
• C. Nonhomologous
• D. Polar chromosomes

Answer: (A)

Meiosis involves matching chromosomes from mom and dad that carry the same genes in the same order. These paired chromosomes are called homologous chromosomes. They come together during prophase I and can exchange genetic material in crossing over, which creates variation, then segregate into different cells in meiosis I. This pairing is specifically between one chromosome from each parent, making them homologous to one another. Sister chromatids are the identical copies produced when DNA duplicates; they stay joined at the centromere and separate during meiosis II. Nonhomologous chromosomes are simply chromosomes that don’t form a matched pair and don’t align with a counterpart from the other parent. The term polar chromosomes isn’t used to describe this pairing. So, the description of chromosomes that pair with their counterpart from the other parent refers to homologous chromosomes.

Meiosis involves matching chromosomes from mom and dad that carry the same genes in the same order. These paired chromosomes are called homologous chromosomes. They come together during prophase I and can exchange genetic material in crossing over, which creates variation, then segregate into different cells in meiosis I. This pairing is specifically between one chromosome from each parent, making them homologous to one another.

Sister chromatids are the identical copies produced when DNA duplicates; they stay joined at the centromere and separate during meiosis II. Nonhomologous chromosomes are simply chromosomes that don’t form a matched pair and don’t align with a counterpart from the other parent. The term polar chromosomes isn’t used to describe this pairing. So, the description of chromosomes that pair with their counterpart from the other parent refers to homologous chromosomes.