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What are the similarities and differences between DNA and RNA?

DNA and RNA are structurally almost identical, but there are a number of key differences. The 'D' in DNA stands for deoxyribose - the sugar molecule that gives DNA a stable helical conformation (called a ...

Answered by Tristan D. • Biology tutor

4647 Views

What is the difference between eukaryotic cells and prokaryotic cells?

The main difference between eukaryotes and prokaryotes is that eukaryotic cells contain membrane-bound organelles (this includes a nucleus). Eukaryotes can be a single-celled or multi-celled organisms, su...

Answered by Sarah L. • Biology tutor

4239 Views

A right-angled triangle has a base of 5 cm, a height of 12 cm. Find the length of the hypotenuse.

Draw the triangle.Let the base = a, height = b and hypotenuse = ca = 5, b = 12, c = ?Using Pythagoras theorem, a² + b² = c²so, 5² + 12² = c²

Answered by Abhiyan B. • Maths tutor

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Asses the arguments that support the theory of party decline

Parties are unable to organise government to deliver a political programme –Decreasingly valid, as party control in Congress has strengthenedPressure groups have taken over the role of parties in financin...

Answered by Saif U. • Politics tutor

3696 Views

Explain what phototropism is and why plants might benefit from positive phototropism.

Phototropism is a growth response to a light stimulus.Positive phototropism causes the stems of plants to grow towards a light source causing the leaves of the plant to be pointing towards the lgth source...

Answered by Rachel S. • Biology tutor

33686 Views