Practice Questions

TLS Online TPP Program

#Question id: 27364

Which statement best describes the distinction between the purposes of the two RNAi pathways within the eukaryotic cell?

#XL - T Zoology

miRNA-mediated gene silencing represents a back-up pathway should siRNA-mediated gene silencing be unsuccessful at silencing the target dsRNA
siRNA and miRNA-mediated gene silencing pathways must both be active to successfully silence the target dsRNA
miRNA and siRNA-mediated gene silencing represent evolutionary-independent pathways which confer identical silencing mechanisms on the target dsRNA
siRNA-mediated gene silencing represents a cell defence mechanism against exogenous dsRNA; miRNA-mediated gene silencing is an integral gene expression regulation process

More Questions

TLS Online TPP Program

#Question id: 15340

#XL - S Microbiology

Serrogate light chain formation takes place in

TLS Online TPP Program

#Question id: 15342

#XL - S Microbiology

The heavy chain is then expressed on the cell surface in combination with the surrogate light chain, which is made up of_______________, together they form the pre-B-cell receptor,

TLS Online TPP Program

#Question id: 15406

#XL - S Microbiology

Which method of gene transfer involves direct contact between the bacteria?

TLS Online TPP Program

#Question id: 15407

#XL - S Microbiology

The end result of F factor mediated conjugation:

TLS Online TPP Program

#Question id: 15408

#XL - S Microbiology

Which of the following is not a protein or group of proteins required for conjugation to occur?

TLS Online TPP Program

#Question id: 15409

#XL - S Microbiology

A heterozygous trihybrid corn plant is testcrossed and the following progeny are produced (all traits are recessive to their wildtype alternative);

booster, silkless 137

booster, liguleless, silkless 291

liguleless, silkless 3

booster, liguleless 34

What is the order of the loci on the chromosome?