Cell Biology Answers

Would the following answers be correct

Which of the following are products of cell division by mitosis? **Answer C**
A. cells that have different forms of the same gene
B. four genetically similar daughter cells
C.two cells genetically identical to the original cell**
D. daughter cells with half the number of chromosomes

Which of the following are true of endosymbiotic theory? **Answer A B C**
A. Explains the origin of some eukaryotic organelles , such as chloroplasts
B. explains why mitochondria contain a double membrane
c. states that an ancestral eukaryotic cell engulfed an aerobic proteobacteria
D. explains the origin of all organelles found within a eukaryotic cell
E provide insight about why mitochondria can survive outside of a eukaryotic cell

I'm in need of an explanation for zig-zag or two start model of chromatin packaging. Can you provide some help.

Thank you.

Most Archaeans lack a peptidoglycan what

select the descriptions that apply to the sodium potassium pump
adenosine triphosphate is necessary for the pump’s function
the pump moves potassium ions into the cell and sodium out of the cell
sodium ions and potassium ions move into and out of the plasma membrane by osmosis
the concentration gradient of the ions determines the direction of movement through the pump

which of the following characteristics of ribozymes provide support to the RNA world hypothesis
Select all that apply
made of RNA
involved in protein synthesis
contain deoxyribose
are polypeptides
are catalysts

Select the phrases that describe the plasma membrane
creates a barrier between the inside and outside of the cell
separates the nucleus and the cytosol
provides a rigid structure that allows the cell to hold its shape
regulates transport of molecules into and out of the cell