MCQs4All - Biology Collection
Biology MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed of past papers
Question. In all arthropods,the body is covered with a chittinous cuticle which is secreted by the____________?
Question. Double fertilization occurs in_________?
- All plants
- All seed plants
Question. Purines and pyrimidines are in equal ration in DNA. It was indicated by_______________?
- Watson & Crick
- Harshay & Chase
Question. Animals obtain carbohydrates mainly from___________?
Question. Excessive increase in temperature of medium causes the enzyme molecule to____________?
- None of these
Question. Of the following which one is not found in series proterostomia?
Question. Deoxygenated blood first enters in _________ part in fishes?
- Sinus venosus
- Right atrium
- Left atrium
- Conus arteriosus
Question. The survival of an animal depends upon its ability to take some from its environment____________?
- Organic molecules
- Inorganic molecules
Question. Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________?
- A specific organism can always be found in association with a given disease
- The organism can be isolated and grown in pure culture in the laboratories
- The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.
- It is possible to recover the organism in pure culture from the experimentally infected animals
Question. The membrane of vacuoles is known as__________?
- All of these
Question. Gaseous exchange through the skin is known as ______________ respiration?
Question. Ribose is an example of___________?
Question. Example of bacteria requiring low concentration of oxygen is__________?