Role of microtubules is:
1. To help in cell division
2. Cell membrane formation
3. Respiration
4. Pinocytosis
Difference between eukaryotes and prokaryotes is in:
1. Circular ss DNA in prokaryotes
2. Histone with prokaryotic DNA
3. Operon in eukaryotes
4. Membrane bound organelles in eukaryotes
Plant pathogenic bacteria are mostly:
1. Gram + Non-spore forming
2. Gram – Non-spore forming
3. Gram + spore forming
4. Gram (–) spore forming
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
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.
Lysosome contains:
1. Oxidative enzymes | 2. Hydrolytic enzymes |
3. Reductive enzymes | 4. Anabolic enzymes |