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What is the difference between a gene and a chromosome?

DNA is a long list of instructions which everyone has inside the nucleus of each of their cells. A section of DNA that has instructions to make a certain protein is called a gene . Now because DNA is so long...
SI
Answered by Saheefa I. • Biology tutor
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Discuss attitudes towards masculinity in Macbeth.

There are several ways that we could focus and structure this answer.· Exploring Macbeth’s changing masculinity throughout the play. (From brave warrior to submissive husband to Lady Macbeth and his progress...
BT
Answered by Beth T. • English tutor
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Factorise x^2 - 14x + 49

(x - 7)^2
SK
Answered by Shikhar K. • Maths tutor
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A curve has the equation y = 4x^2 + 5x + 3 and a line has the equation y = x + 2. Show that the line and the curve have one point of intersection.

Set the equations equal to each other: 4x^2 + 5x + 3 = x + 2Collect terms and set equal to 0: 4x^2 + 4x + 1 = 0Factorise the equation: (2x + 1)(2x + 1) = 0Can now find the value of x: 2x + 1 = 0, therefore 2...
FG
Answered by Francesca G. • Maths tutor
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A curve has the equation y=x^2+4x+4 and a line has the equation y=2x+3. Show the line and curve have only one point of intersection and find its coordinate..

First set the equations equal to each other: x^2+4x+4 = 2x+3.Rearrange for x in form ax^2+bx+c : x^2+2x+1=0Factorise: (x+1)^2=0. Repeated root, hence only one intersection. x=-1. Using y=2x+3, y=1. So coordi...
EF
Answered by Ewan F. • Maths tutor
5072 Views