Scientists cultured and used Henrietta Lacks' HeLa cells to conduct research. The cells were also used to determine the effectiveness of treatment for certain diseases. However, normal cells may also be grown in a laboratory setting. An illustration of normal cells are growing in a petri dish is shown below

its the cell wall and the they are unique to plant

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )