In a diploid cell with 5 chromosome pairs (2n = 10), how many centromeres will be found in a nucleus at G2 of the cell division cycle?

TLS Online TPP Program

#Question id: 2967

#SCPH01 Biochemistry

G1 is associated with which of the following cellular events?

TLS Online TPP Program

#Question id: 12715

#SCPH06 I Botany

Early-acting stress sensors provide the initial signal for the stress response,  several possible examples of stress-sensing mechanisms that act early in the pathway have been identified. They include:

A) calcium channel (cyclic nucleotide-gated calcium channel) that senses changes in temperature

B) A kinase (SnRK1, a SNF1-related kinase 1) that senses energy depletion during stress

C) A plasma membrane histidine kinase (ATHK1) that senses osmotic stress

D) A leucine rich repeat receptor kinase (LRRK) protein (Srlk)

E) An endoplasmic reticulum transmembrane sensor inositol-requiring enzyme 1 (IRE1)

And activating several response after sensing these mechanisms;

i) activates hundreds of stress-response transcripts

ii) that functions as an upstream regulator of salinity responses in Arabidopsis

iii) that is required for acclimation to heat stress

iv) that is required for heat tolerance in plants

v) activates ABA-dependent and ABA-independent responses

Which of the following is the correct match the activating response with its sense mechanism;

TLS Online TPP Program

#Question id: 16023

#SCPH05 I Biotechnology

Cells which have undergone transformation frequently become

TLS Online TPP Program

#Question id: 2675

#SCPH06 I Botany

Which of the following statements regarding the trp operon is true?

TLS Online TPP Program

#Question id: 2075

#SCPH05 I Biotechnology

The force driving simple diffusion is: