Although the students made significant progress on all questions, the smallest gains were observed for questions related to understanding of the products of mitosis and meiosis in terms of the amount of genetic material in daughter cells as compared with parent cells
First, one parent cell
gives rise to four offspring cells (gametes).
As the separated homologues reach opposite ends of the parent cell
, several events occur at once--what is considered telophase I.
Each cell resulting from meiosis has one-half the number of chromosomes contained in the parent cell
or other body cells.
Clone: a line of genetically identical cells, usually created or expanded from a single parent cell
Notably, these cells recorded higher growth density than their parent cell
line, while determinations of inducible P-450, ammonia removal, and urea production similarly yielded markedly positive results, all highly beneficial attributes towards the development of a bio-artificial liver device for use by human patients suffering from liver disease.
About two-thirds have the classic 50:50 division of chromosomes from the split parent cell
, but a third of them have an extra chromosome or even double copies of all chromosomes.
Budding type may not be directly related to pathogen virulence but multipolar budding may lead to faster proliferation of pathogen since the buds (which later form daughter cells) appear at various points on the reproducing parent cell
Notably, these cells recorded growth of 2-3 times the density of their parent cell
line, while determinations of inducible P-450, ammonia removal, and urea production similarly yielded markedly positive results, all highly beneficial attributes toward the development of a bio-artificial liver device for use by human patients.
Because the original parent cell
is replaced by the two new daughter cells, this approach ensures that stem cells will not be depleted during periods of development or healing.
If cancer cells at more than one metastatic site carry a common set of nonrandom genetic defects, it is likely that these cells are derived from a single parent cell
, says Bova.
Eventually, he says, only a "gossamer" neck connected a vacuole to its parent cell