Answer:
Chromatin helps regulate DNA replication.
Explanation:
Chromatin helps condense DNA strands to smaller units that can be easily managed during DNA replication and gene expression. This also prevents the breakage of the strands and facilitates equal distribution of chromosomes during cell division (during mitosis and meiosis).
The best answer is c) trust me
Answer: Calvin cycle is the second stage of photosynthesis and does not require light.
Explanation: Photosynthetic reactions are divided into two phases: light dependent reactions and carbon fixation reactions. Light dependent reactions is the first stage of photosynthesis in which sunlight is used to split a molecule of water and the energy generated is conserved in form of ATP and NADPH.
Calvin cycle is the second stage of photosynthesis. It is also called carbon fixation reactions. These reactions do not need light to occur. It occurs in the dark, the ATP and NADPH produced in light dependent reactions are used to drive these reactions. In Calvin cycle, carbon dioxide is assimilated through a cyclic pathway to produce triose phosphate which is a precursor for glucose and other related molecules such as starch.