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What term is used to describe the cloudiness produced by bacterial growth in a tube of broth?

An agar plate that has colonies demonstrating multiple different morphologies is most likely a pure culture.

Which of the following is the correct order of steps needed to aseptically inoculate an agar plate from a broth culture?

Observation of a broth after transfer can show whether or not contamination has occurred

You are a research assistant in a lab that studies nucleic acids. Your advisor gave you four tubes for analysis. Each of these tubes differs in its contents by the source of its nucleic acids: mouse cytoplasm (single-stranded RNA), yeast nuclei (double-stranded DNA), rotavirus (double-stranded RNA), and parvovirus (single-stranded DNA). The approximate nucleotide base composition of each sample is given in the table below. Tube A C U T G 1 32 17 0 32 19 2 34 16 15 0 35 3 30 21 0 23 26 4 33 16 34 0 17 Which tube most likely contains yeast nuclei?

Below is the sequence of the non-template strand of DNA downstream of the transcription start site of a eukaryotic gene transcribed by RNA polymerase II. Determine the mRNA sequence encoded by the template DNA.5′-ctagccatggggtcgacggcggagg- 3′

Which of the following is NOT necessary for RNA polymerase to recognize the promoter of a bacterial gene?

An mRNA has the stop codon 5′ UAA 3′. What tRNA anticodon will bind to it?

A bacterial protein is encoded by the following mRNA sequence: 5’-AUGGUGCUCAUGCCCUAA-3’. The second methionine codon (AUG) in this mRNA sequence will:

Assume that