They say how an enzyme perfectly fits into its substrate is alike a "lock and key".
Only one specific enzyme can fit a specific substrate.
Answer:
because they need foodi think
Number 4 should be mitosis
There will be 0 sister chromatids would that cell contain during G1 of the cell cycle. Chromatids in biology is defined as each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA. The answer in this question is zero (0).
Hello! the answer is B.Gametangium