CRISPR can edit DNA. What organisms naturally has CRISPR?

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#Question id: 35148

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Which of the following is true about sporopollenin?

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#Question id: 35149

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In angiosperms, mature male gametophyte may consist of:

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#Question id: 35150

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In Polygonum-type embryo sac formation:

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#Question id: 35151

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In a mature Polygonum-type embryo sac:

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#Question id: 35152

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Which of the following embryo sac types are monosporic?

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Exine and intine of pollen: