Plant pathogenic bacteria are mostly:
1. Gram + Non-spore forming
2. Gram – Non-spore forming
3. Gram + spore forming
4. Gram (–) spore forming
The telomeres of eukaryotic chromosomes consist of short sequences of:
1. Cytosine-rich repeats
2. Adenine-rich repeats
3. Guanine-rich repeats
4. Thymine-rich repeats
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