How often is there A mistake in DNA replication crash course?

Replication: DNA Ligase (11:47) (12:00) DNA replication gets it wrong about one in every 10 billion nucleotides.

What are proteins crash course?

Crash Course Review Recap Proteins are organic macromolecules built up of amino acids joined by peptide bonds. Amino acids are monomers made up of a carboxyl group, an amine group, and an R group attached to a central carbon. There are four increasingly complex levels of protein structure.

What is the sugar DNA?

The sugar in DNA is deoxyribose. The pyrimidines are cytosine (C) and thymine (T); the purines are guanine (G) and adenine (A). The bases are linked by hydrogen bonds such that A always pairs with T and G with C.

How many mistakes does DNA replication make?

Each time a cell divides to make a new cell, its DNA is copied and, on average, makes three random mistakes. Most of these mistakes are harmless, but a small fraction of them occur in a gene that will kick-start a cell’s uncontrollable replication, leading to cancer.

What is the nickname of the longest known protein on Earth?

With its length of ~27,000 to ~35,000 amino acids (depending on the splice isoform), titin is the largest known protein.

What is the nickname and function of the longest known protein on Earth?

Titin
(0:19) Well, it is the name of the longest known protein on earth, and it’s actually in you right now. Because of its enormous size, it was given the name ‘Titin’ by scientists (and that’s with two i’s) and it’s a protein that helps give you like the springiness to your muscles.

What are enzymes crash course?

What are Enzymes? Enzymes are proteins that catalyze chemical reactions. Molecules at the beginning of the chemical reactionary process are called substrates, and these are converted into products. Enzyme kinetics, or Michaelis-Menten kinetics, investigate how enzymes bind substrates and turn them into products.