Question

what would a karyotype of hela cells contain?
several triploid cells
trisomy 21
many copies of chromosomes
abnormalities on 1st gene

Explanation:

HeLa cells are cancerous cells. Cancer cells often have aneuploidy (abnormal chromosome number). HeLa cells specifically have many copies of chromosomes due to their uncontrolled cell division and genetic instability. Triploid cells (three sets of chromosomes) are not characteristic of HeLa cells in general. Trisomy 21 (three copies of chromosome 21) is a specific aneuploidy seen in Down syndrome and not a general feature of HeLa cells. Abnormalities on the 1st gene is too vague and not a typical description of HeLa cell karyotype.

Answer:

many copies of chromosomes