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31). How many copies of any particular gene, such as BRCA1, does each person have in most of his or her body cells?

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Annuals generally do best if they are planted in a sunny area.

Match the following with the correct answer.

Which one of the following describes how palm trees are usually propagated?

What is the preferred soil pH for most annuals?

30). Which vaccine can help reduce the risk of cancer?

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Grasses and groundcovers are not too particular about soil, so fertilizer is rarely required. But they tend to grow better in well drained soil and they are drought tolerant.

Most bulb types usually form a clump or cluster which foliage and flowers grow from.