wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Addition of a trace of thyroxine or iodine in water containing tadpoles will

A
Keep them in larval stage
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Hasten their metamorphosis
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Slow down their metamorphosis
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Kill the tadpoles
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D Hasten their metamorphosis
In frogs, growth and metamorphosis (development of frog from tadpole stage to adult stage) is regulated by thyroxine gland. Thyroxine is secreted from thyroid gland. It stimulates the consumption of oxygen by metabolically active tissues and also increases the oxidation of glucose in tissues. Hence, addition of a trace of thyroxine or iodine in water containing tadpoles will hasten or speed up their metamorphosis.
So, the correct answer is 'Hasten their metamorphosis'.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Thyroid Gland
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon