I believe it’s the Carboxyl group but confirm online. Hope this helped :))
<span>capillary is your answer. I hope I helped. :)</span>
The Big Bang theory is a cosmological model for the observable universe from the earliest known periods through its subsequent large-scale evolution.
The sentence probably saying about polyploid
Polyploid is when the cell duplicates a complete set of chromosome. This will result in one extra chromosome for each kind which makes them triploid, tetraploid or more. The polyploid organism will more likely to die. In the animal, the extra chromosome will cause sexual imbalance and can make it infertile.