Top answers

How does DNA code for proteins?

What is DNA? DNA is the chemical used to store genetic information (inherited traits and characteristics) in the body. The shape of DNA is a double helix (two complementary chains, interwoven). Every chain h...
PG
Answered by Patrick G. • Biology tutor
26315 Views

What is the difference between type I and type II diabetes?

The most important thing to remember is that type I diabetes is genetic and type II diabetes is mostly influenced by environmental factors (although there is thought to be some genetic influence). Patients w...
DY
Answered by Daisy Y. • Biology tutor
5110 Views

Explain how amino acids could be identified using gel electrophoresis

The sample of amino acids is placed in the center of a polyacrylamide gel, across which a voltage is applied. Depending on the pH of the buffer, the amino acids will move at different rates towards either th...
EH
Answered by Eleanor H. • Biology tutor
13421 Views

What is the best way to go about answering a long answer biology question?

Answering questions in biology that offer more marks is all about key words - usually the examiner has a few of these in front of them that offer a mark simply for using the word in your answer. The good thi...
DY
Answered by Daisy Y. • Biology tutor
7632 Views

Why is the human circulation em called a double circulation system?

In the double circulation system there are two routes that the blood can take: 1. Through the lungs 2. To the rest of the body The blood starting in the heart has no oxygen in it. It flows from the heart and...
EL
Answered by Elizabeth L. • Biology tutor
16607 Views