Biology 7402: Genetic Information, Variation and Relationships Between Organisms Topical Past Paper Questions

Leigh syndrome (LS) is a rare, recessive, inherited condition. LS is caused by a mutation in any one of more than 75 different genes coding for proteins involved in oxidative phosphorylation. In 80% of people with LS, these mutations occur in nuclear DNA. In 20% of people with LS…

1 Complete the following definitions. [2 marks] The genome is ___ ___ ___ The proteome is ___ Recombinant DNA technology can involve the transfer of fragments of human DNA into bacteria. The bacteria are then used to produce human proteins. Give two reasons why bacteria are able…

1 Describe how a sample of chloroplasts could be isolated from leaves. Describe now a sample of chloroplasts could be isolated from leaves. [4 marks] 2 Scientists grew two groups of plants: • control plants with all the inorganic ions needed • iron-deficient plants with all the i…