Given below are two statements:
Statement I - Back cross is the crossing of $F_1$ hybrid with one of the two parents from which they were derived.
Statement II - Test cross involves the crossing of $F_1$ - hybrid with its homozygous recessive parent.
In light of above statements, choose the correct answer from the option given below.
Complete the analogy with respect to structure of sperm
Nebenkern : ' X ' : : Acrosome is formed from : ' Y '
'X' | 'Y' |
---|---|
Mitochondria | centrioles |
'X' | 'Y' |
---|---|
Nucleus |
Golgi body |
'X' | 'Y' |
---|---|
Mitochondria | Golgi body |
'X' | 'Y' |
---|---|
Nucleus | centrioles |
Given below are two statements:
Statement I - The muscularis of intestine can be differentiated into longitudinal and oblique muscles only.
Statement II - The muscularis of stomach is made up of outer- longitudinal, middle oblique and inner circular muscles.
In light of above statements, choose the most appropriate answer from the option given below.
An organ with sphincters at its origin is