Top answers

What is the differences between mitosis and meiosis?

Mitosis and meiosis are both processes which describe the production of new cells. Mitosis produces 2 daughter cells which are genetically identical to the parent cell. Each daughter cell is diploid (contain...
JT
Answered by Jennifer T. • Biology tutor
450963 Views

Explain the all-or-nothing principle for an action potential.

In the resting state, the membrane potential of a neuron is around -70 millivolts (mV). When acted upon by a stimulus , the membrane depolarises as Na + gated ion channels open and allow sodium ions to rush ...
OC
Answered by Oyku C. • Biology tutor
65383 Views

How does glycolysis produce ATP?

Glycolysis produces energy through the form of ATP. ATP is created directly from glycolysis through the process of substrate-level phosphorylation (SLP) and indirectly by oxidative phosporylation (OP). The t...
CH
Answered by Charlie H. • Biology tutor
37234 Views

Describe how a student wouldn’t test for the presence of lipid molecules in a sample of food

The student would conduct an emulsification test. First of all, crush the sample to increase is surface area. Next add the sample to a test tube of ethanol, allowing for he sample to disolve before adding a ...
TS
Answered by Tobias S. • Biology tutor
2956 Views

Describe how a new phenotype may arise in the population and increase in frequency using the theory of natural selection.

A mutation arises in an individual that confers a selective advantage. The phenotype the mutation produces is selected for by natural selection and so the individual survives to reproductive age. This mutati...
KA
Answered by Katy A. • Biology tutor
2797 Views