A. Ovary B. Anther C. Stigma D. Petal
around 55 percent of the world's population is thought to be living in an urban area or city, with that figure set to rise to 68 percent over the coming decades, according to the UN.
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Answer:
<h2>c</h2>
Explanation:
A true breeding: it is a kind of breeding in which the parents would produce offspring that all the offspring would contain the same phenotype.
This means that the parents are homozygous for each trait. So their all the offspring will be same as the parent.
So here a plant with purple flowers is allowed to self-pollinate, as generation after generation it produces purple flower, it means that it must be homozygous for purple color.