Three Models for Contractile-Ring Positioning in Animal Cells Are Presented

question 13

Short Answer

Three models for contractile-ring positioning in animal cells are presented in the schematic diagrams below. Answer the following question(s) according to these models.

-In the early embryos of Caenorhabditis elegans, defects in the formation of astral microtubules increase myosin activity throughout the cell cortex. If the spindle is forced to one side of the cell, the cortical myosin activity is observed mostly at the opposite side of the cell. Which model (1, 2, or 3) better predicts these observations? Write down 1, 2, or 3 as your answer.

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Definitions:

Horney's Theory

A psychoanalytic theory proposed by Karen Horney that focuses on social and cultural factors influencing personality development, emphasizing the concept of basic anxiety and neurotic needs.

Idealized Image

A mental construct of perfection or an ultimate standard one strives to emulate, often influenced by societal standards and personal desires.

Horney's Needs

Psychological needs identified by Karen Horney, including the needs for affection and approval, the need for power, and the need for independence.

Neurotic Trends

Patterns of behavior and thought that are considered to be unhealthy psychological responses to stress or conflict, often leading to anxiety or other mental health issues.