#Question id: 24545
#Unit 9. Diversity of Life Forms
Based on the phylogenetic tree, match the following taxon character with their accurate representation of relationship given in Column I and Column II;
#Question id: 26993
#Unit 10. Ecological Principles
Which of the following metapopulation has showing lowest variation & highly isolated
#Question id: 4852
#Unit 8. Inheritance Biology
The R and S loci are 20 m.u. apart. If a plant of genotype Rs/rS were allowed test cross ,which of the following progeny having 10% proportional ?
#Question id: 2200
#Unit 2. Cellular Organization
A neurotransmitter that binds to a postsynaptic cell and opens K+ channels:
#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 |