Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:**Distinguishing Meiosis I from Meiosis II**
**How do you know what is meiosis I and what is meiosis II?**
Here are some hints to help you determine how to identify if a cell is undergoing meiosis I or meiosis II.
- In prophase I and metaphase I, the chromosomes are found in their homologous pairs. In prophase II and metaphase II, there are single duplicated chromosomes.
- In anaphase I and telophase I, the chromosomes are duplicated (shaped like Xs). In anaphase II and telophase II, the chromosomes are not duplicated.
**Take a look at the picture, and then answer the questions**
*Diagram Description:*
The diagram depicts a cell with chromosomes aligned at the metaphase plate, attached to spindle fibers extending from opposite poles. The chromosomes are arranged in pairs, suggesting homologous pairing.
**In what phase of meiosis is this cell?**
- ○ metaphase I
- ○ prophase II
- ○ metaphase II
- ○ prophase I
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