DNA, RNA & Protein Synthesis. A DNA nucleotide has three parts: a sugar molecule called DEOXYRIBOSE, a phosphate group (which consists of P and O atoms), and a NITROGEN BASE.
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DNA REPLICATION- Copying DNA in
*Two nucleotide chains separate
by unwinding; each chain serves as a
template for a new nucleotide chain.
Suppose that the sequence of nucleotides in one chain of the original DNA molecule is A-T-T-C-C-G. DNA polymerases would produce a new nucleotide chain with the sequence of ________________.
Sickle Cell Anemia: caused by a point mutation that substitutes adenine for thymine; results in defective hemoglobin/sickle shaped RBCs.
2. URACIL replaces thymine. So, uracil (not thymine) pairs with adenine in RNA.
from the DNA in the nucleus to the cytoplasm of a eukaryotic cell.