CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Nicotiana sylvestris flowers only during long days and N. tobacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross fertilized to produce self-fertile offspring. What is the best reason for considering N. sylvestris and N.tobacum to be separate species?

A
They are physiologically distinct.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
They are morphologically distinct.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
They cannot interbreed in nature.
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
They are reproductively distinct.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C They cannot interbreed in nature.
The term species evolves from word specific means only those group of plants or animals come under one species which can interbreed and produce fertile offsprings naturally. N. tobacum and N. sylvestris cannot produce flowers naturally have different photoperiods, hence they cannot belong to the same species. Thus the correct answer is 'They can not interbreed in nature.'

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