Variation in the size of red blood cells is called __________?
A. hypochromia
B. Anisocytosis
C. Poikilocytosis
D. Polychromatophilia
biology mcqs with answers
Bean shaped cells in plants are: _________?
A. Mesophyll cells
B. Xylem Cells
C. Phloem Cells
D. Guard Cells
Lungs are situated in the __________?
A. Abdominal cavity
B. Pericardial cavity
C. Buccal cavity
D. Thoracic cavity
cataracts is a disease which is due to__________?
A. Opacity of Cornea
B. Opacity of lens
C. None
D. None of these
Which bacterium is used in the production of insulin by genetic engineering?
A. saccharomyces
B. Rhizobium
C. Escherichia
D. Mycobacterium
PCR technique was invented by__________?
A. Karry Mullis
B. Boyer
C. Sanger
D. Cohn
Which is a genetically modified crop?
A. Bt-cotton
B. Bt-brinjal
C. Golden rice
D. All
The vaccines prepared through recombinant DNA technology are_____________?
A. Third generation vaccines
B. First-generation vaccines
C. Second-generation vaccines
D. None of these
Plasmids are used as cloning vectors for which of the following reasons?
A. Can be multiplied in culture
B. Self-replication in bacterial cells
C. Can be multiplied in laboratories with the help of enzymes
D. Replicate freely outside bacterial cells
The first clinical application of gene therapy over a 4 year old girl was for_________?
A. Adenosine deaminase deficiency
B. Adenosine deficiency
C. Growth deficiency
D. Adenine deficiency
