Double unit membrane is absent in:
1. Ribosomes
2. Nucleus
3. Plastids
4. E.R
The genetic material of prokaryotic cell:
1. | Non histonic double-stranded DNA |
2. | Histonic double-stranded DNA |
3. | Histone & DNA both are absent |
4. | Histone without DNA |
Which cell organelle is concerned with the glycosylation of protein:
1. Ribosome
2. Peroxisome
3. Endoplasmic reticulum
4. Mitochondria
The function of telomeres in the nucleus:
1. | Pole ward movement |
2. | To initiate the RNA synthesis |
3. | To seal the ends of chromosome |
4. | To recognize the homologous chromosome |
In the fluid mosaic model of a plasma membrane:
1. | Upper layer is non-polar and hydrophilic |
2. | The polar layer is hydrophobic |
3. | Phospholipids form a bimolecular layer in the middle part |
4. | Proteins form a middle layer |
Which of the following occurs more than one and less than five in a chromosome:
1. Chromatid
2. Chromomere
3. Centromere
4. Telomere
Ribosomes are produced in:
1. Nucleolus
2. Cytoplasm
3. Mitochondria
4. Golgibody
The mitotic spindle is mainly composed of which protein:
1. Actin
2. Tubulin
3. Actomyosin
4. Myoglobin
Which of the following ribosomes are engaged in protein synthesis in the animal cell:
1. | Ribosomes that occur on the nuclear membrane and E.R. |
2. | Ribosomes of only cytosol |
3. | Ribosomes of only nucleolus and cytosol |
4. | Ribosomes of only mitochondria and cytosol |
Extranuclear DNA is found in:
1. | Lysosome and chloroplast |
2. | Chloroplast and mitochondria |
3. | Mitochondria and lysosome |
4. | Golgi and E.R. |