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How can two brown-eyed parents have a blue-eyed baby?

Most of our characteristics, such as eye colour, are encoded by a pair of alleles. These are different forms of the same gene, one inherited from the father and one from the mother. You can get dominant a...

AS
Answered by Amber S. Biology tutor
27235 Views

y = x*(x-2)^-1/2. Prove dy\dx = (x-4)/2*(x-2)^3/2

Firstly, when approaching a differentiation question you need to work out what method you need to use to solve it. As you can see there are two terms multiplied by one another (the 'x' term and the '(x...

GR
Answered by Graham R. Maths tutor
6526 Views

How do I prepare effectively for a closed-booked exam?

Although this might seem obvious, my main piece of advice is to know your text really well. Make sure you have read it at least once more in addition to any group reading you might do in class t...

BG
2894 Views

Using logarithms solve 8^(2x+1) = 24 (to 3dp)

Using the laws of logs you can see that if you log both sides of the equation you get: 

(2x+1)*log(8) = log(24) 

Dividing both sides of the equation by log(8) you get: 

<...
GR
Answered by Graham R. Maths tutor
15664 Views

Statistics: Dave throws a ball at a bucket. The probability the ball goes into the bucket is 0.4. Dave throws the ball four times. What is the probability that he gets it in twice?

When Dave throws the ball, it can either go into the bucket, or miss. The probability of the ball going into the bucket is 0.4 and each throw is independent of eachother so this probability is the same...

JW
Answered by Jack W. Maths tutor
7657 Views

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