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A geneticist performs a testcross with three linked genes and obtains the following recombination frequencies:  Genes A and B: 20% recombination Genes B and C: 15% recombination Genes A and C: 35% recombination  Which of the following represents the correct order of these genes on the chromosome?

What is the promoter and what is its role in transcription? 

1) Briefly describe the process of pre-mRNA splicing (1 pt). 2) Then explain why it is necessary for eukaryotes (1 pt).

The sequences below represent a gene on a DNA molecule. The coding and template strands’ base sequences of this gene are shown below. Transcribe and translate the sequence below. You must provide BOTH: transcript (2 pt) and translation (1 pt). Label the RNA portion of your answer with 3’ and 5’ at the ends (1 pt). Coding strand:     5′ ATGTGTACCTAA 3′ Template strand: 3’ TACACATGGATT 5’

Correctly identify where the major groove is located on this DNA molecule (A or B), and choose the statement that best describes the difference between major and minor grooves in DNA.

What do genes encode?

Which of the following statements regarding transcription termination mechanisms is False?

Exergonic reactions have a negative standard energy change.

Operon network under control of a common global regulatory protein but individual operons are controlled separately by their own regulators

Which of the following statements are FALSE?A= Prokaryotes and eukaryotes use different genetic codesB= The genetic code contains 20 different codonsC= Not all codons code for an amino acidD= Codons are made from nucleotides A, G, C, T