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How would you recommend structuring a high-level response to a question?

The kind of response you provide always depends on the number of marks that are available to you and the type of question that you are being asked. Questions that invite you to debate or assess a statemen...

Answered by Chloe I. • History tutor

3793 Views

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...

Answered by Faye S. • Psychology tutor

2475 Views

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 wo...

Answered by Yasmin M. • Biology tutor

6327 Views

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.

Answered by Kian D. • Chemistry tutor

4931 Views

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...

Answered by Tom A. • Chemistry tutor

5313 Views