Sister chromatids are .. Single choice. A. dense patches within the nucleus
B. bacterial chromosomes
C. joined strands of duplicated genetic material
D. prokaryotic nuclei
Option 2

Please hell!

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.

All phases of matter may have a fixed mass