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Which of these nucleotide bases is NOT present in RNA: Cytosine, Thymine, Guanine, Adenine, Uracil

The correct answer is: Thymine.The four bases found in DNA molecules are Cytosine, Guanine, Adenine and Thymine but in RNA molecules, the Thymine base is replaced by Uracil.
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Answered by Frankie S. • Biology tutor
25385 Views

How does saltatory conduction work?

Most axons in the human nervous system are myelinated, meaning they are enclosed in a myelin sheath , a fatty deposit created and maintained by Schwann cells that acts as an electrical insulator . There are ...
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Answered by Zoe C. • Biology tutor
31987 Views

(Language paper) - ' How has the writer structured the text to convey his/her message to its readers'?

Firstly, read the question and highlight any topic words or sentences that allude to what exactly the examiner is asking of you. Once you have done that, analyse the insert paper provided, by highlighting an...
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Answered by Khatra M. • English tutor
2785 Views

Give the names of three commonly known types of subatomic particles along with their charge and relative masses. In the basic model of the atomic structure, where would one find each of these particles?

The three subatomic particles are electrons, protons and neutrons. Protons are positively charged and have a relative mass of 1 whilst neutrons are neutral in charge and also have a positive charge of 1. Ele...
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Answered by Matthew H. • Chemistry tutor
8535 Views

Given that y = 16x + 1/x , find the two values of x for which dy/dx = 0

The first stage of this question involves differentiating the equation of y in terms of x given to us. In order to differentiate, we first need to write y in terms of base x (where all the terms are x to the...
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Answered by Andrew K. • Maths tutor
5861 Views