Genetic Control By Idura

Learning of Objectives

Structure of DNA and RNA

DNA VS RNA

Semi-Conservative Replication The two strands of the DNA molecule could split apart. New nucleotides could then line up along each strand, opposite their appropriate partners, and join up to form complementary strands along each half of the original molecule. The new DNA molecules would be just like the old ones, because each base would only pair with its complementary one. This method of copying is called semi-conservative replication, because half of the original molecule is kept (conserved) in each of the new molecules. This happens during interphase

Polymerase

DNA Controls the Cell How can a single type of molecule like DNA control all the activities of a cell? The answer is very logical. All chemical reactions in cells, and therefore all the cells’ activities, are controlled by enzymes. Enzymes are proteins. DNA is a code for proteins, controlling which proteins are made. Thus DNA controls the cell’s activities.

Sickle Cell The effect it has is that glutamic acid is a hydrophilic amino acid. It makes the hemoglobin molecule soluble. Valine is hydrophobic , it makes the molecules less soluble.

Transcription and Translation.

To put it simply…

THE End. (For this chapter)