A) 7
B) 14
C) 21
D) 28
Correct Answer: C
Solution :
The main plant body of wheat (Triticumaestivum) is diploid, it contains two homologous sets of chromosomes in their each cell. Synergid cells are formed from haploid megaspore through mitotic division. So, they contains only half chromosome number to that of the main plant body. Thus if root of wheat contain 42 chromosomes than synergid cells contain 21 chromosomes.
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