Questions
The author of the book 'Origin Of Life' is
- Darwin
- Lamarck
- A I Oparin
- Carl linnaeus
The theory of spontaneous generation or abiogenesis was disproved by
- A.I.Oparin
- Darwin
- Louis Pasteur
- Sydney fox
Which of the following is not a vestigial organ?
- Ear pinna muscle.
- Plica semilunaris
- Epiglottis
- Vermiform appendix
The book 'On the Origin of Species' by means of natural selection' was first published in
- 1859
- 1901
- 1779
- 1831
Macrophages kill harmful bacteria by
- exocytosis
- pinocytosis
- phagocytosis
- osmosis
Which of the following immunoglobulins can cross human placenta?
- IgA
- IgE
- IgM
- IgG
Inflammation causing substance called histamine is produced by
- lymphocytes
- macrophages
- fibroblast
- mast cells
In the human body kupffer cells are found in the
- lungs
- spleen
- liver
- thymus
Colostrum or first milk contains
- IgE
- IgG
- IgA
- IgM
A primary lymphoid organ is
- tonsil
- peyer's patches
- thymus
- lung
Which organelle is not surrounded by one or more membranes?
- Mitochondrion
- Chloroplast
- Peroxisome
- Ribosome
The 'Suicidal'bag of an animal cell is
- spherosome
- dictyosome
- lysosome
- endosome
Which is present in both prokaryotic cells and in eukaryotic plant cells?
- Nucleus
- Chloroplasts
- Cell walls
- Mitochondria
The microtubular arrangement in the flagellar filament is
- 9+0
- 9+2
- (9) + 1
- 12+1