C final answer cells, organs, tissues, organ systems
Answer:
The correct answer is D sister chromatids;centromere
Explanation:
After DNA replication during s phase or synthesis phase of interphase of the cell cycle,each chromosome has a copy and the cell that is newly formed is now 4n.
We cal these identical pairs sister chromatids and they are held together by a centromere
Answer:
The functional units of dna that contain the instructions for making one or more proteins are the "Genes".
D. hormones would be the correct answer, which are chemical substances produced by gakbdd