#Question id: 17084
#Unit 12. Applied Biology
#Question id: 2990
#Unit 2. Cellular Organization
Mitotic CDK complexes are maintained in an inactive state through inhibitory phosphorylation of the CDK subunit. Two highly conserved tyrosine and threonine residues in mammalian CDKs are subject to regulated phosphorylation.
|
Gene |
Mutant phenotypes |
|
A. Wee1 |
i. the cell does not divide but continues to grow |
|
B. CAK kinase |
ii. mitotic cyclins are inactivated |
|
C. cdc25 phosphatase |
iii. premature entry into mitosis |
The following table enlists genes and phenotypes observed on mutation of these genes but not correctly matched. Which one of the following combinations is correctly matched ?
#Question id: 10454
#Unit 6. System Physiology – Plant
Arabidopsis mutants impaired in the chloroplast avoidance response with the help of PHOT1/PHOT2 led to the identification of a novel F-actin-binding protein known as
#Question id: 727
#Unit 1. Molecules and their Interaction Relevant to Biology
26-residue peptide composed of alanine and leucine shows a circular dichroism (CD) spectrum characteristic of α-helix at 50°C in 5 mM phosphate buffer at pH 7.4. When the peptide solution is cooled gradually to 25°C, and the CD spectra are recorded at different temperatures, the most likely observation will be that
#Question id: 5069
#Unit 5. Developmental Biology
The central player in the “canonical” Wnt intracellular signal transduction pathway is called β-catenin in vertebrates and in Drosophila (the homolog of b-catenin):