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What are some of the causes of unipolar depression?

In terms of biological causes of depression, family studies are used with the idea that depression runs in the family and you are more likely to develop it if a close relative has it. Gerson found that if cl...
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Answered by Faye S. • Psychology tutor
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In humans, cystic fibrosis is caused by a recessive allele, f. A man and a woman are both heterozygous for the cystic fibrosis allele. What is the probability that they will produce a girl who has cystic fibrosis?

The genotype for someone heterozygous for the cystic fibrosis allele would be Ff . Thus the father’s genotype (including sex chromosomes) would be FfXY and the mother’s would be FfXX . In order to work out t...
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Answered by Yasmin M. • Biology tutor
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why does silicon dioxide have such a high melting/boiling point?

It has a giant lattice structure, strong covalent bonds are difficult to break etc.
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Answered by Kian D. • Chemistry tutor
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1. X with 2,4-DNPH forms a red precipitate. 2. X reduces blue Copper ions into red precipitate. What kind of compound is X?

X with 2,4 DNPH (Brady's reagent) is used to show the presence of an aldehyde or ketone. X also reduces Copper ions (Fehling's) meaning it has to be an aldehyde and not a ketone as ketones are not readily ox...
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Answered by Tom A. • Chemistry tutor
5898 Views

What is parliamentary sovereignty?

Parliamentary sovereignty is the idea that representative in parliament exercise ultimate control over British law and the actions of the British state. It is understood by the British political elite to be ...
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Answered by Fraser A. • Politics tutor
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