Lucky kaha gaya yrr "WhY is Nodule is of Pink colour
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As nodules grow in size they gradually turn pink or reddish in color, indicating nitrogen fixation has started. The pink or red color is caused by leghemoglobin (similar to hemoglobin in blood) that controls oxygen flow to the bacteria.
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Yrr aap sach m chod Kar chalegaye aise kaise chale Gaye mujh aap pr gussa aa rha h
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