I believe the stage of interphase in which cells copy their DNA is the S phase. :)
The charge by the nucleus of a atom has a negative charge.
A. The hosts body could reject the transplanted stem cells
I think the answer your looking 4 is B
HOPE THIS HELPS
#Optimist
Answer:
The correct answer will be-gas absent in primordial atmosphere (oxygen).
Explanation:
The Miller experiment was performed in 1953 to show that organic molecules can be formed from the inorganic molecules in the conditions resembling the primordial atmosphere.
Same conditions were created to the unstable atmosphere like a mixture of gases which included- methane, sulfur dioxide and hydrogen but lacked oxygen as it was absent in the primordial atmosphere.
Thus, gas absent in the primordial atmosphere (oxygen) is the correct answer.
