
| List-I (Cell/Tissue/Organs) | List-II (System) | 
|---|---|
| 1. Mesorchium | 1. Reproductive system | 
| 2. Uriniferous tubules | 2. Excretory system | 
| 3. Endocrine glands | 3. Chemical coordination | 
| 4. Sinus venosus | 4. Vascular system | 
| List-I (Structure) | List-II (Associated with organ) | 
|---|---|
| (A) Fimbriae | (I) Spermatozoa | 
| (B) Seminiferous tubules | (II) Testes | 
| (C) Acrosome | (III) Ovary | 
| (D) Graafian follicle | (IV) Oviduct | 
In a messenger RNA molecule, untranslated regions (UTRs) are present at: 
I. 5' end before start codon 
II. 3' end after stop codon 
III. 3' end before stop codon 
IV. 5'  end after start codon

