#Question id: 23044
#Unit 12. Applied Biology
#Question id: 7264
#Unit 5. Developmental Biology
The Dictyostelia social
amoebas are found in a wide range of soil habitats. They can come together to
form a fruiting structure, in which a proportion of cells are sacrificed to
build the stalk and the remainder differentiate into resilient dormant spores.
This multicellular life cycle is common to all Dictyostelids. It consists
of an interconnected programme of cell movement and cell differentiation, and
has been intensively studied in the model organism D. discoideum. Few mutants
(Column A) and phenotypes (Column B) are listed in the table given below.
|
Column A |
Column B |
|
A.
Loss of function of cAMP-dependent
protein kinase (PKA) |
i.
cell develop normally but unable to germinate |
|
B.
Loss of function of RegA |
ii.
Loose aggregate form |
|
C.
Loss of function of adenylate cyclase B |
iii.
No aggregation |
|
D.
Loss of function of gp80 |
iv.
accumulation of cAMP and PKA activation |
#Question id: 10459
#Unit 6. System Physiology – Plant
The role of N-terminus and the C-terminus region of the cryptochrome is given below;
a) N-terminal region is involved in the dimerization of cryptochrome and conformational changes
b) C terminus of cryptochrome forms a complex with SPA1 and COP1 that prevents them from acting, thereby preventing the degradation of HY5
c) N-terminal region of cryptochrome forms a complex with SPA1 and COP1 that prevents them from acting, thereby preventing the degradation of HY5
d) Arabidopsis plants overexpressing only the C-terminal region of cryptochrome (CCT) which resemble light-grown seedlings when grown in darkness
Which of the following combinations from the above statements is correct?
#Question id: 27485
#Unit 1. Molecules and their Interaction Relevant to Biology
Two sugars that differ in configuration at only one chiral center are described as
#Question id: 3504
#Unit 11. Evolution and Behavior
Bird has a choice of four food resource with following character . assume all resource are equally abundant Following sequence of preference for resource ?