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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
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 correct match regarding adaptive radiation of Australian marsupials corresponding to placental mammals
Statements related to human Insulin are given below. Which statement(s) is/are correct about genetically engineered Insulin?
Panspermia, an idea that is still a favorite for some astronomers, means:
In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as:
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.
DNA replication is semi-conservative in nature. This was experimentally proved in eukaryotes by:
Which of the following is the initiation codon:
Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.
Darwin's finches are an excellent example of:
Match List-I with List-II: List-I A. Gene pool B. Genetic drift C. Genetic flow D. Genetic equilibrium (Gene frequency) List-II I. Stable within a generation II. Change in gene frequency by chance III. Transfer of genes into or out of population IV. Total number of genes and their alleles
Mannitol is a sugar alcohol. It is stored food in:
In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?
Match the following organisms with the products they produce: Column I (a) Aspergillus niger (b) Acetobacter aceti (c) Clostridium butyricum (d) Lactobacillus Column II (i) Ethanol (ii) Citric acid (iii) Lactic acid (iv) Acetic acid (v) Butyric acid
Match List-I with List-II: List-I A. Saccharomyces cerevisiae B. Aspergillus niger C. Trichoderma polysporum D. Clostridium butylicum List-II I. Citric acid II. Butyric acid III. Ethanol IV. Cyclosporin-A
Which one of the following options gives one correct example of convergent evolution and divergent evolution respectively?
The drug RU-486 is taken after sexual intercourse. It blocks implantation, and in this sense it prevents pregnancy: