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Describe the application of DNA profiling to determine paternity and also in forensic investigation.

Organisms have short sequences of bases, which are repeated many times. These are called satellite DNA. These repeated sequences vary in length from person to person.

The DNA is copied using P...

Answered by Zana Katarina L. • Biology tutor

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Outline the use of polymerase chain reaction (PCR) to copy and amplify minute quantities of DNA.

PCR is a way of producing large quantities of a specific target sequence of DNA.

It is useful when only a small amount of DNA is available for testing (e.g. crime scene samples of blood, seme...

Answered by Zana Katarina L. • Biology tutor

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Explain that female carriers are heterozygous for X-linked recessive alleles.

· An individual with a recessive allele for a disease condition that is masked by a normal dominant allele is said to be a carrier

Answered by Zana Katarina L. • Biology tutor

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Define sex linkage

Sex linkage refers to when a gene controlling a characteristic is found on a sex chromosome (and so we associate the trait with a predominant gender)

· Sex-lin...

Answered by Zana Katarina L. • Biology tutor

6326 Views

How can you increase the yield of product from a reaction?

Increase the temperature
2) Increase the concentration of reactants
3) Increase the surface area of the reactants
4) Use a catalyst
5) Remove the product as it's formed

Answered by Azelie W. • Chemistry tutor

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