In the hexaploid wheat, the haploid ( $n$ ) and basic $(x)$ numbers of chromosomes are:

In the hexaploid wheat, the haploid ( $n$ ) and basic $(x)$ numbers of chromosomes are:
  1. $n=21$ and $x=21$
  2. $n=21$ and $x=14$
  3. $n=21$ and $x=7$
  4. $n=7$ and $x=21$.

Solution

The basic number $(x)$ of chromosomes in wheat is 7 so, $6 x=2 x=42$ and $n$ $=21$ Related Theory Triticum aestivum is known that hexaploid common wheat has stronger adaptability to many stressful environments than its tetraploid wheat progenitor.

Asked in: NEET 2007

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