(1). Active site of all serine proteases consists of a. Ser-Glu-Asp b. Ser-Glu-Met c. Ser-His-Asp d. Ala-Glu-Met (2). Which of the following properties is common to all cytoskeletal motor proteins like kinesisn, dyneins and myosins? a. GTPase activity b. ATPase activity c. Actin binding domain d. DNA binding domain (3). Which of the following antibiotics … Read more
(1). ABA catabolism is mediated by a. ABA-8’ carboxylase b. ABA-8’ hydroxylase c. ABA-8’ aminotransferase d. ABA-8’ oxygenase (2). Nodulating genes in Rhizobium are influenced by the presence of which one of the following in the roots? a. Flavones b. Lignin c. Tannins d. Cellulose (3). Which of the following techniques is used for the … Read more
(1). What are zooxanthellae? a. Deep sea dwelling brightly pigmented fish b. Algae living in corals c. A species of crab d. Xanthomonas infected zooplankton (2). Hemophilia A and Hemophilia B have nearly identical phenotypes, but they result from mutations in different gens on the X chromosome. This is an example of a. Locus heterogeneity … Read more
Cell Membrane Questions and Answers (Cytology MCQ-03): The cell membrane, also known as the plasma membrane, is a thin, flexible barrier that encloses the contents of a cell. It consists of a phospholipid bilayer with embedded proteins, allowing selective transport of substances and maintaining cell integrity. The cell membrane regulates the exchange of materials between … Read more
MCQ on Plasma Membrane (Part-1): The plasma membrane, also known as the cell membrane, is a thin, semi-permeable barrier that surrounds the cell, separating its internal contents from the external environment. It is composed of a phospholipid bilayer with embedded proteins and controls the movement of substances in and out of the cell. This MCQ … Read more