Deletion- the fact that a codon is missing implies that the nucleotides were deleted.
The answer is A:
The SUGAR-PHOSPHATE CHAINS form the sides, and the BASE PAIRS form the rungs
Answer:
evolution of life on Earth
Explanation:
Life began on Earth at least 3.5 to 4 billion years ago, and it has been evolving ever since. At first, all living things on Earth were simple, single-celled organisms. Much later, the first multicellular organisms evolved, and after that, Earth's biodiversity greatly increased.
They are the same density.
An enzyme lowers the activation energy of a reaction so it can take place within living organism, so an enzyme is a biological catalyst.
