Question Bank Directory

Match the following list of microbes with the products/functions they are used for: Column I A. Saccharomyces cerevisiae B. Monascus purpureus C. Trichoderma polysporum D. Propionibacterium sharmanii Column II 1. Production of immunosuppressive agents 2. Ripening of Swiss cheese (Large holes) 3. Commercial production of ethanol 4. Blood cholesterol lowering agents

The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is:

Select the correct statements with respect to pleiotropism:

Which of the following statements about methanogens is not correct?

Given below are two statements: Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid. Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome. In the light of the above statements, choose the correct answer from the options given below:

Select the mismatch

Select the correct match regarding adaptive radiation of Australian marsupials corresponding to placental mammals

Which of the following is an example of forward biasing?

What is the expected percentage of F2 progeny with yellow and inflated pod in dihybrid cross experiment involving pea plants with green coloured, inflated pod and yellow coloured constricted pod?

Statements related to human Insulin are given below. Which statement(s) is/are correct about genetically engineered Insulin?

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio of $C_P/C_V$ for the gas is equal to:

Panspermia, an idea that is still a favorite for some astronomers, means:

With the help of the given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in F3 generation.

Pick out the correct statements: I: Haemophilia is a sex-linked recessive disease. II: Down’s syndrome is due to aneuploidy. III: Phenylketonuria is an autosomal recessive gene disorder. IV: Sickle cell anaemia is an X-linked recessive gene disorder

Select the correct statement:

Amino acid sequence in protein synthesis is decided by the sequence of:

Select the two correct statements out of the four (a-d) given below about lac operon: (a) Glucose or galactose may bind with the repressor and inactivate it. (b) In the absence of lactose, the repressor binds with the operator region. (c) The z-gene codes for permease. (d) This was elucidated by Francois Jacob and Jacques Monod.

A black body at $227^\circ\text{C}$ radiates heat at the rate of $7 \text{ cal cm}^{-2}\text{s}^{-1}$. At a temperature of $727^\circ\text{C}$, the rate of heat radiated in the same units will be:

A 12 V, 60 W lamp is connected to the secondary of a step-down transformer, whose primary is connected to AC mains of 220 V. Assuming the transformer to be ideal, what is the current in the primary winding?

Study the pathway given below: In which of the following options, correct words for all the three blanks A, B and C are indicated?