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Question: <span>In seed producing plants pollen grains contain what
Answer: It is vegetative cells.
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Good Luck Studying ^-^</span>
An example of this would be eye color. You can put contacts in changing the color but not necessarily changing the genes.
Answer: The shortcomings of the experiment design is what the universe has no known limit to which it can grow. As for a balloon when enough air is put in, it will pop.
Explanation: