A mutated E. coli cell carries out and completes DNA replication, but the lagging strands are found to contain more errors than normal. These errors are not found evenly distributed throughout the lagging strands, but are found in clusters. Which enzymatic activity is missing from this cell?

TLS Online TPP Program

#Question id: 386

#XL - S Microbiology

Which of the following properties of water does not contribute to the fitness of the aqueous environment for living organisms?

TLS Online TPP Program

#Question id: 785

#XL - T Zoology

Several types of very short RNAs repress—or silence—expression of genes with homology to those short RNAs. They are produced from a variety of sources and direct the silencing of genes in the following different ways-

TLS Online TPP Program

#Question id: 12903

#XL - S Microbiology

A gene isolation system that uses adapted vectors termed as_______

TLS Online TPP Program

#Question id: 2363

#XL - Q Biochemistry

Cells lining the respiratory tract contain ______ that help keep the lungs clear of particles.

TLS Online TPP Program

#Question id: 4583

#XL - S Microbiology

Prior to the work of Lyell and Darwin, the prevailing belief was that Earth is ________.