Occasionally three polar bodies are found clinging to the mature ovum. one came from an unequal division of the ovum, but from where did the other two arise?
a) there were originally four polar bodies and one disappeared.
b) what you really see are two polar bodies and the sperm that will fertilize the egg.
c) one is an undeveloped primary oocyte that failed to mature.
d) the first polar body has also divided to produce two polar bodies.

The correct answer is D.

Explanation:

During the formation of the eggs, cells called polar bodies or corpuscles are generated. As a result of ovogenesis, three polar bodies are produced. When we find three polar bodies attached to the mature egg, we observe that one of them comes from an uneven division of the egg, while the other polar body has also divided to produce two more polar bodies.

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the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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