Microsporogenesis, megasporogenesis, pollination, fertilisation, seed formation.
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Q1 · Sexual Reproduction in Flowering Plants · EASY
In a mature anther, the microspore mother cells undergo meiosis to produce microspores. How many microspores are typically produced from one microspore mother cell?
Q2 · Sexual Reproduction in Flowering Plants · MEDIUM
During megasporogenesis in a typical flowering plant, the functional megaspore develops into the female gametophyte. What is the most common number of nuclei present in a mature embryo sac before fertilization?
Q3 · Sexual Reproduction in Flowering Plants · MEDIUM
A pollen grain lands on the stigma of a flower and germinates. The pollen tube enters the embryo sac through the micropyle and discharges two male gametes. One male gamete fuses with the egg cell. What does the second male gamete fuse with?
Q4 · Sexual Reproduction in Flowering Plants · MEDIUM
Cross-pollination generally leads to higher genetic variation in offspring compared to self-pollination. Which of the following is NOT an adaptation that promotes cross-pollination in flowering plants?
Q5 · Sexual Reproduction in Flowering Plants · HARD
In some flowering plants, the nucellus persists and becomes enlarged and laden with food reserves in the mature seed. This persistent nucellus tissue is called perisperm. In which of the following plants is perisperm found in the seed?