#Question id: 7274
#Unit 5. Developmental Biology
The
following experiment is designed to study the role of several hormones in the
regulation of metamorphosis in frogs.
Group # |
Treatment |
Days
to Metamorphosis |
1 |
Saline |
30 |
2 |
Prolactin |
> 100 |
3 |
TSH |
15 |
4 |
Thyroxine |
10 |
5 |
Corticosterone |
30 |
6 |
Thyroxine
+ Corticosterone |
5 |
7 |
Prolactin + TSH |
30 |
8 |
Thyroid gland
removed |
> 100 |
#Question id: 5668
#Unit 5. Developmental Biology
Following statements are made in relation to the five widely recognized stages of Arabidopsis embryogenesis:
A. The fusion of haploid egg and sperm takes place in zygotic stage
B. Rapid cell division in two regions on either side of the future shoot apex forms globular stage
C. The cell elongation throughout the embryo axis and further development result in Torpedo stage
D. The embryo loses water and becomes metabolically inactive in the torpedo stage
Which combination of the above statements is correct?
#Question id: 4948
#Unit 11. Evolution and Behavior
RNA molecules can both carry genetic information and be catalytic. This supports the proposal that
#Question id: 1168
#Unit 4. Cell Communication and Cell Signaling
Latent TGFβ is converted to mature TGFβ by:
#Question id: 1339
#Unit 4. Cell Communication and Cell Signaling
Which of the following cellular structures serve similar functions in plants and animals, respectively?
Plants Animals