#Question id: 7278
#Unit 5. Developmental Biology
The following demonstrates the blastocoel formation in the mammals. Which of the following statement is correct?
#Question id: 7277
#Unit 5. Developmental Biology
According to this model, Which of the following statements are correct?
#Question id: 7276
#Unit 5. Developmental Biology
The
cells that make up a tetrapod limb arise from three developing tissues:
The
____a______ will provide skeletal precursors to the limb.
The
_____b____ will provide muscle precursors to the limb.
The
_____c____ will provide the skin of the limb.
Which of the following option is correct?
#Question id: 7275
#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 |
If the thyroid gland were removed from the tadpoles in Group 4, metamorphosis would
#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: 7273
#Unit 5. Developmental Biology
Hox9 and Hox10
paralogues specify the stylopod, Hox11
paralogues specify the zeugopod, and Hox12 and Hox13 paralogues
specify the autopod. This scenario has been confirmed by numerous experiments.
Which of the following experiment correctly describe this scenario?