Primitive Groove

A depression that forms within the primitive streak that serves as an opening through which migrating cells pass into the deep layers of the embryo.

TLS Online TPP Program

#Id: 8941

#Unit 2. Cellular Organization

Spindle position checkpoint pathway ensures that the nucleus is accurately partitioned between two daughter cells

TLS Online TPP Program

#Id: 10263

#Unit 6. System Physiology – Plant

ABRE PyACGTGGC & coupling element (CE) is a major cis‐acting element in ABA responsive gene expression. 

The basic leucine zipper (bZIP) transcription factors AREB and ABF can bind to the ABRE cisacting element to activate ABA‐dependent gene expression

TLS Online TPP Program

#Id: 7955

#Unit 2. Cellular Organization

Only asparagine residues in the tripeptide sequences Asn-X-Ser and Asn-X-Thr (where X is any amino acid except proline) are substrates for oligosaccharyl transferase.

TLS Online TPP Program

#Id: 7578

#Unit 5. Developmental Biology

The molecular processes of capacitation prepare the sperm for the acrosome reaction and enable the sperm to become hyperactive

TLS Online TPP Program

#Id: 2134

#Unit 8. Inheritance Biology

In paracentric inversion form,

a. Acentric chromatid- Chromatid that lacks a centromere

b. Dicentric chromatid- Chromatid that has two centromere