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11 June, 04:31

Among plants known as legumes (beans, peas, alfalfa, clover, for example), the seeds are contained in a fruit that is itself called a legume, better known as a pod. Upon opening such pods, it is commonly observed that some ovules have become mature seeds, whereas other ovules have not. Which of the following statements is (are) TRUE?

a. The flowers that gave rise to such pods were not pollinated

b. Pollen tubes did not enter all of the ovules in such pods

c. There was apparently not enough endosperm to distribute to all of the ovules in such pods.

d. The ovules that failed to develop into seeds were derived from sterile floral parts.

e. Fruit can develop, even if all ovules within have not been fertilized.

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  1. 11 June, 05:04
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    b. Pollen tubes did not enter all of the ovules in such pods

    Explanation:

    Quite sometimes, ovules fail to mature seeds because most of their flowers do not receive enough pollen to fertilize all of their ovules and are eventually aborted, thereby resulting in some ovules becoming mature seeds and others do not get matured.
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