Answer: If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will D. complete the cycle and divide. G1 checkpoint occurs between the G1 and S phase of the cell cycle. When the cell is grown sufficiently and produces all components of DNA replication it enters in the S phase.
Answer:
The evidence we found that mitosis was a continuous process was that many of the cells we observed in a small part of the onion root was that they were between stages meaning they never stopped and started, the process kept going.
Explanation:
1) full-cost pricing, (2) win-win solutions, and (3) a responsibility to future generations.
Answer:
c. atp
Explanation:
Photosynthesis occurs in autotrophs such as green plants. It completed in two phases, light reactions and dark reactions. Light reactions are the light- dependent and dark reactions are the light-independent stage. During light reactions, green plants produce ATP and NADPH using solar energy. During dark reactions products of light reactions such as ATP and NADPH are used to fix carbon dioxide into sugar molecule. The dark reactions occur in the stroma of a chloroplast.
Answer:
D
Explanation:
Cell fractionation is the process used to separate cellular components while preserving individual functions of each component. This is a method that was originally used to demonstrate the cellular location of various biochemical processes.