Few statements regarding the role of disheveled (dsh) and beta-catenin in the development of sea urchin.

A. beta-catenin accumulates predominantly in the macromeres and somewhat in veg2 tier cells.

B. At the fourth cleavage disheveled and β-catenin, both of which are found in the cytoplasm and are inherited by the micromeres.

C. Treating sea urchin embryos with lithium chloride allows β-catenin to accumulate in every cell and transforms presumptive ectoderm into endoderm.

D. When β-catenin is prevented from entering the nuclei (i.e., it remains in the cytoplasm), the vegetal cell fates are specified, and the entire embryo develops as a ciliated ectodermal ball.

Which one of the following options represents a combination of correct statement?

TLS Online TPP Program

#Question id: 19129

#Unit 12. Applied Biology

Physical components in a biosensor include

TLS Online TPP Program

#Question id: 19130

#Unit 12. Applied Biology

The biological component is suitably immobilized on to the transducer by which ways.

1. Enzymes are immobilized by glutaraldehyde 

2. Porous sheet like lens tissue paper or nylon net fabric are used

3. Transducer surface may not be covalently linked to this cross-linked siloxane

Which of the statements is incorrect?

TLS Online TPP Program

#Question id: 19131

#Unit 12. Applied Biology

How analyte and biological substances interacted in a biosensor?

TLS Online TPP Program

#Question id: 19132

#Unit 12. Applied Biology

Biological component interacts specifically to the analyte, which produces a physical change in reaction such as

1. Heat released or absorbed 

2. Production of electrical potential  

3. Movement of electrons 

Which of the following above statements are correct?

TLS Online TPP Program

#Question id: 19149

#Unit 13. Methods in Biology

The GC trace obtained after an experiment is called a

TLS Online TPP Program

#Question id: 19150

#Unit 13. Methods in Biology

What useful information can be found from a Van Deemter plot?