Practice Questions

TLS Online TPP Program

#Question id: 3878

Which of the following statements about the synthesis of rRNA and tRNA in E. coli is true?

#SCPH01 Biochemistry

Both rRNA and some tRNAs are part of the same primary transcript.
Each rRNA sequence (16S, 23S, 5S) is transcribed into a separate primary transcript.
Primary tRNA transcripts undergo methylation, but rRNA sequences are not methylated.
The tRNA sequences all lie at the 3’end of the rRNA transcripts

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TLS Online TPP Program

#Question id: 18373

#SCPH05 I Biotechnology

Scientists engineered a bacterial strain of P. fluorescens which is able to degrade 2,4-dinitrotoluene. This bacteria also helps in

TLS Online TPP Program

#Question id: 2293

#I Life Science/ Life Sciences Group – I-V

Hooke, Lamark, and Dutrochet are all credited with developing the

TLS Online TPP Program

#Question id: 54

#SCPH05 I Biotechnology

About 25 of the 92 natural elements are known to be essential to life. Which 4 of these 25 elements make up approximately 96% of living matter?

TLS Online TPP Program

#Question id: 11956

#SCPH28 | Zoology

An advantage of a complete digestive system over a gastrovascular cavity is that the complete system ________.

TLS Online TPP Program

#Question id: 10252

#SCPH05 I Biotechnology

When molecular oxygen is unavailable—for example, in plant roots in flooded soils—glycolysis can be the main source of energy for cells, How?