List of practice Questions

Choose the correct answer regarding the translation of mRNA to proteins when AUG is the start codon and codes for methionine.
Typhoid Vi antigen type of vaccine is:
Which one of the given statement is not correct about plant viruses ?
Hepatitis C virus can cause liver cancer. It has:
The role of slow sand filters in water treatment facilities is:
Match LIST-I with LIST-II
Choose the correct answer from the options given below:
The F\(_1\) hybrid (Rr Ii) is crossed with a variety double recessive for both the traits. How many types of zygotes will be produced in the cross?
Which of the following statement is wrong about C\(_4\) plants
The Ti plasmid and its T-DNA have been genetically modified for use as a vector for the insertion of recombinant DNA into plant chromosomes to prevent dicots from tumor diseases. The source of Ti plasmid is:
The ability of a molecule to function as an antigen depends on its:
A. Size
B. Structural complexity
C. Chemical nature
D. Degree of foreign nature to the host
Choose the correct answer from the options given below:
Match LIST-I with LIST-II
LIST-I (Immunoglobulin Class) LIST-II (Characteristics)
A. IgGI. Serves as part of B-cell receptor complex  
B. IgAII. Anaphylactic mediating antibody  
C. IgDIII. Most abundant in body fluid, neutralize toxins, opsonizes bacteria  
D. IgEIV. Secretory antibody and protect mucous membrane  
Choose the correct answer from the options given below:
The cationic antimicrobial peptide, histatin is found in human's_____________.
Convalescent sera belongs to
A method for culturing anaerobes is the GasPak System, which uses hydrogen and a ___________ catalyst to remove O\(_2\).
The antimicrobial agent mercuric chloride functions by
Match LIST-I with LIST-II
Choose the correct answer from the options given below:
Tetracycline is usually mixed with the culturing medium as selective agents in selecting transformants in gene cloning technique. It acts by:
Match LIST-I with LIST-II
LIST-I (Commercial Production) LIST-II (Microorganism)
A. Citric acidI. Corynebacterium glutamicum  
B. EthanolII. Aspergillus niger  
C. Amino acids and nucleotidesIII. Claviceps purpurea  
D. AlkaloidsIV. Saccharomyces cerevisiae  
Choose the correct answer from the options given below:
For sterilization, the culture media and glasswares must be generally autoclaved at:
Benzoic acid or benzoates are used to preserve food from
A. Insects
B. Yeast
C. Clostridia
D. Molds
Choose the correct answer from the options given below:
The Bdellovibrios bacteria is a _________ bacteria:
A. Gram negative
B. Predator of gram negative bacteria
C. It has a single polar flagellum
D. Reproduce by producing spores called myxospore during nutrient deficit conditions
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Organisms belongs to the genus bacteroides are:
Which one of the following statement is incorrect regarding the work of Erwin Chargaff?
Which of the following amino acids are essential amino acids in humans:
A. Leucine
B. Lysine
C. Isoleucine
D. Serine
Choose the correct answer from the options given below:
Match LIST-I with LIST-II
Choose the correct answer from the options given below: