The drug called 'Heroin' is synthesized by:
| 1. | nitration of morphine | 2. | methylation of morphine |
| 3. | acetylation of morphine | 4. | glycosylation of morphine |
One of the representatives of the phylum Arthropoda is:
1. Silverfish
2. Pufferfish
3. Flying fish
4. Cuttlefish
Choose the correctly matched pair:
1. Inner lining of salivary ducts- Ciliated epithelium
2. Moist surface of buccal cavity- Glandular epithelium
3. Tubular parts of nephrons- Cuboidal epithelium
4. Inner surface of bronchioles- Squamous epithelium
Most animals are tree dwellers in a:
2. thorn woodland
3. temperate deciduous forest
4. tropical rainforest
Select the correct sequence for the transport of sperm cells in the male reproductive system:
| 1. | Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus |
| 2. | Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra |
| 3. | Seminiferous tubules → Rete testis → Vasa efferentia → Epididymus → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus |
| 4. | Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra |
Which of the following equipment is essentially required for growing microbes on a large scale for the industrial production of enzymes?
| 1. | Bioreactor | 2. | BOD incubator |
| 3. | Sludge digester | 4. | Industrial oven |
| 1. | Smooth muscles, show branching, found in the walls of the heart |
| 2. | Cardiac muscles, unbranched muscles, found in the walls of the heart |
| 3. | Striated muscles, tapering at both ends attached to the bones of the ribs |
| 4. | Skeletal muscle, shows striations and is closely attached to the bones of the limbs |
Golden rice is a genetically modified crop plant where the incorporated gene is meant for the biosynthesis of:
| 1. | Vitamin-B | 2. | Vitamin-C |
| 3. | Omega 3 | 4. | Vitamin-A |
Following statements describe the characteristics of the enzyme Restriction Endonuclease. Identify the incorrect statement:
| 1. | The enzyme recognizes a specific palindromic nucleotide sequence in the DNA |
| 2. | The enzyme cuts DNA molecules at an identified position within the DNA |
| 3. | The enzyme binds DNA at specific sites and cuts only one of the two strands |
| 4. | The enzyme cuts the sugar-phosphate backbone at specific sites on each strand |
© 2026 GoodEd Technologies Pvt. Ltd.