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Biology

Asked by Max · 3 years ago

How can there be 64 codon combinations but only 20 possible amino acids?

The amino acids in a colon can be in multiple different orders, even those there’s twenty amino acids they can be rearranged and different amino acids can be in combination in a codon, hope this helps!

Maths

Asked by Hosna · 3 years ago

What is the Pythagorean Therum?

a² + b² = c² where a and b are the two shortest sides of a right angled triangle and c is the length of the hypotenuse, you might want to look up a diagram to help you understand this. Let me know if you need anymore help!

General

Asked by Ella · 3 years ago

What is a helpful way to revise?

There are so many ways to revise and really everyone revises differently so it’s best to explore lots of techniques and see which ones work for you. Personally I like to take notes from a textbook by condensing/simplifying them, make mindmaps, make posters, make myself little revision quizzes, make flash cards (I used the app quizlet a lot) and my number one revision technique is exam papers and p... more

History

Asked by Rachel · 3 years ago

I’m kind of stuck with what to write for this 12 mark question: ‘Which of the following was the most important reason why Hitler was able to become Fuhrer by August 1934; the Reichstag fire or The Night of the Long Knifes?’?

1st Paragraph: introduction summarising all your points, what was the Reichstag Fire if you can remember the date that’s a bonus, the same for the night of the long knives. 2nd Paragraph: Why was the Reichstag fire important to hitler coming to power? 3rd Paragraph: Why was the night if the long knives important? 4th Paragraph: conclude, which was most important and why. Use the line “I think... more

Maths

Asked by Zoe · 3 years ago

How do you complete the square?

(^ means “to the power of”) For example: x^2 + 6x - 10 We halve the number before the x and put it into a bracket with the x and square the bracket as below. (x + 3)^2 We don’t want the 3^2 so we subtract 9 (3^2 is 9). (x + 3)^2 - 9 Finally keep the number from the original equation the same. So, (x + 3)^2 - 9 - 10 Final answer = (x+3)^2 - 19 It’s gets a little harder if you have a n... more

Physics

Asked by Molly · 3 years ago

What is successive ionisation energy?

Successive ionisation energies are ionisation energies one after the other so for example 1st, 2nd, 3rd and 4th successive ionisation energies.

Maths

Asked by Ellie · 3 years ago

How do you add fractions?

First you need to make the denominator the same (the number in the bottom of the fraction). Once they have the same denominator you can add them together. For example: 3/4 + 5/6 = 9/12 +10/12 = 19/12 To change the denominator you must multiply the top (numerator) by the same factor as the denominator. 3/4 —> 9/12 because you multiply 4 by 3 and 3 by 3. If you need anymore help with this let me... more

Maths

Asked by Ava Rose · 3 years ago

What is the quotient of 2/5 and 4/5?

A quotient is just a fraction so adding 2/5 and 4/5 gives 6/5 or multiplying them forms 8/25 or dividing 2/5 by 4/5 gives 1/10

Science

Asked by Ava · 3 years ago

Why are some ions known as polyatomic ions?

The consist of multiple atoms. For example a monoatomic ion would be an ion that consists of one atom such as Fe2+, Na+ etc. A polyatomic ion could be a sulphate (SO4-2) ion or a nitrate ion (NO3-).

Maths

Asked by Nat · 3 years ago

How do you change a decimal into a percentage?

Multiply by 100 0.86 x 100 = 86%

I want to help you achieve amazing GCSE results!

22261Students
helped

91Questions
answered

£20Per
hour