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Describe the process of natural selection

A mutation occurs in the genotype of an organism. This results in a beneficial phenotype being expressed. This organism now has a survival advantage. Therefore, it will live longer. This means it will have m...
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Answered by Katherine O. • Biology tutor
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Describe the process of DNA replication

DNA replication is semi-conservative, meaning existing strands are used as templates for new strands. The DNA is separated (unwinds) by the enzyme helicase. This enzyme breaks the H bonds between nucleotides...
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Answered by Katherine O. • Biology tutor
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Line A is parallel to the line 4y+12x=24. Find the equation of Line A if it passes through the point (5,40/3).

Line A and line 4y+12x+24 are parallel. This means that they have the same gradient. In y=mx+c the gradient of the line is m. We can rearrange the equation 4y+12x+24 to find m. To begin with subtract 12x fro...
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Answered by Chloe B. • Maths tutor
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Complete a seguinte frase, utilizando o pretérito mais-que-perfeito composto: Quando começou a chover, eu já __________ (ir) com o cão à rua.

Quando começou a chover, eu já tinha ido com o cão à rua.This verb tense shows that the action described by the verb happened before another. In this case, I had already walked my dog when it started to rain.
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Answered by Fatima C. • Portuguese tutor
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C and D are two events such that P(C) = 0.2, P(D) = 0.6 and P(C|D) = 0.3. Find P(D|C), P(C’ ∩ D’) & P(C’ ∩ D)

Here we use the formula for conditional probability:P(C|D)xP(D)=(𝑃(C∩D))= 0.3x0.6=0.18Note: 𝑃(C∩D)=𝑃(D∩C)=0.18Hence P(D|C)=𝑃(D∩C)/P(C) = 0.18/0.2 = 0.9P(C'∩D') = P(C'|D')xP(D')P(C'|D) = 0.7P(D')=0.4P(C')=0.8...
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Answered by Sunny V. • Maths tutor
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