MCQ
The Earth Summit (1992) was held at:
- AJohannesburg.
- BSouth Africa.
- CRio de Janeiro.
- DJapan.
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$I.$ 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