Multiple Choice
Which of the following events occurs in meiosis but not in mitosis?
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12. Meiosis
Introduction to Meiosis
Multiple Choice
What are bivalents and where are they found in the process of meiosis?
A
Bivalents are sister chromatids and are found during anaphase I of meiosis.
B
Bivalents are non-homologous chromosomes and are found during telophase I of meiosis.
C
Bivalents are pairs of homologous chromosomes and are found during prophase I of meiosis.
D
Bivalents are single chromosomes and are found during metaphase II of meiosis.
Verified step by step guidance1
Understand the term 'bivalent': In the context of meiosis, a bivalent refers to a pair of homologous chromosomes that are physically connected during the process.
Identify the stage of meiosis where bivalents are formed: Bivalents are formed during prophase I of meiosis when homologous chromosomes pair up and exchange genetic material through a process called crossing over.
Clarify the structure of bivalents: Each bivalent consists of two homologous chromosomes, each made up of two sister chromatids, resulting in a total of four chromatids.
Recognize the significance of bivalents: The formation of bivalents is crucial for genetic diversity as it allows for the exchange of genetic material between homologous chromosomes.
Differentiate bivalents from other chromosomal structures: Unlike single chromosomes or non-homologous chromosomes, bivalents specifically refer to paired homologous chromosomes during prophase I of meiosis.
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