MCQ
The enzyme used for joining two DNA fragments is called.
- ALigase.
- BRestriction endonuclease.
- CDNA polymerase.
- DGyrase.
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$(a)$ Spermatogonia
$(b)$ Secondary spermatocyte
$(c)$ Primary spermatocyte
$(d)$ Spermatid
$I$. Infertility is the inability to produce viable offsprings due to the defects in the female partner
$II$. Complete lactation helps in contraception
$III$. Spreading awareness can help to create a reproductively healthy society
$I.$Ectoderm - Epidermis
$II$.Endoderm - Dermis
$III.$Mesoderm - Muscles
$IV.$Mesoderm - Notochord
$V.$Endoderm - Enamel of teeth
| Vector DNA | Foreign DNA | |
| A | 1 & 5 | 5 &1 |
| B | 2 & 4 | 4 &2 |
| C | 2 & 5 | 5 & 2 |
| D | 3 & 4 | 4 & 3 |