MCQ
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
- ✓Directional change
- BDisruptive change
- CRandom change
- DStabilising change
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Part $-$ Function
$R -$ Cross bridge is formed only in presence of $ATP,$ while breaking of cross bridge is in absence of $ATP.$
$I.$ It is phenomenon in which more recombinants are produced in $F_{2}$-generation
$II.$ More parental combination are produced in $F_{2}$-generation
$III.$ Genotype which are present in $F_{1}$ hybrid. Reappear in high frequency in $F_{2}$-generation
$IV.$ It is a phenomenon in which two chromosome are linked
| Column I | Column II |
| (A) Cerebral hemisphere | (p) Relaying impulses |
| (B) Thalamus | (q) Posture and balance |
| (C) Cerebellum | (r) Control of heart, stomach, lungs, etc. |
| (D) Medulla oblongata | (s) Reflex actions |
| (t) Voluntary control, intelligence, hearing, speech, etc |