Top answers

Biology
A Level

How are action potentials propagated across cholinergic synapses?

In order for action potentials to travel to their intended destination they must cross synapses. These synapses are the spaces between neurones' axon terminals 

HS
Answered by Harry S. Biology tutor
2723 Views

What is the structure of DNA?

DNA stands for deoxyribonucleic acid and is the basic unit of the genetic material that is housed in the nucleus of eukaryotic cells.

DNA was first visualised by Watson and Crick, who described it ...

LR
Answered by Lewis R. Biology tutor
5445 Views

What is an atheroma and how can it lead to a heart attack?

Atheroma = Formed of a hard fibrious plaque containing fatty streaks that have hardened over time (through damage such as high blood pressure). There is a build up of cholesterol and other insolubl...

KL
Answered by Keeley L. Biology tutor
11546 Views

Using mendelian genetics, explain how two brown eyed parents can have a blue eyed child. Which of the alleles is dominant? You may use a graph to support your explanation (Tip: Assume a simple dominance and inheritance )

Given that the brown eyed parents are able to produce blue eyed offspring, it is safe to assume that they are both heterozygots for eye colour and that the brown allele is dominant (A) over the blue allel...

JT
Answered by Jeremy T. Biology tutor
2870 Views

Describe the process of glycolysis

Glycolysis occurs during both aerobic and anarobic respiration in the cytoplasm of the cell in both plants and animals. One glucose molecule is broken down into two molecules of pyruvate releasing 4 molec...

TR
Answered by Taqua R. Biology tutor
6181 Views

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