#Question id: 10511
#I Life Science/ Life Sciences Group – I-V
Which type of pumps inhibits digitoxin in the membranes of heart cells, leading to increased myocardial contraction?
#Question id: 4733
#SCPH01 Biochemistry
If a homozygous plant with red peppers is crossed with a homozygous plant with green peppers, all the F1 plants have red peppers. When the F1 are crossed with one another, the F2 are in a ratio of 9 red : 3 brown : 3 yellow : 1 green due to
#Question id: 18639
#SCPH05 I Biotechnology
#Question id: 3631
#SCPH01 Biochemistry
Six different mutations 1 to 6, from the following results of functional allelism tests whereby the mutants were crossed with each other, determine location of mutant gene.
#Question id: 2990
#SCPH06 I Botany
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 ?