List of top Animal Biotechnology Questions on Cell Biology

Which of the following is NOT correct about Mitochondria?

The dimensions of B-DNA are:

Which form of DNA is most commonly found in nature under physiological conditions?

In the structure of a nucleoside, the base is attached to the sugar at which position?

Without histones, unwound DNA in chromosomes would be very long and the length of completely stretched DNA within each human cell would be:

Which of the following histones is NOT part of the nucleosome core?

Which of the following is NOT correct for Z-DNA conformation?

Which of the following is NOT a purine base?

In a hypothetical stage in the evolutionary history of life on Earth, which self-replicating molecules proliferated before the evolution of all molecules?

Gene is:

The largest known gene is in the human being and has 79 exons spanning at least 2,300 kilobases (kb) DNA. It is:

The number of chromosomes in cattle, goat, and sheep are respectively:

Human genome size is approximately:

The organelle that is referred to as the "powerhouse" of the cell is:

Which of the following is correct regarding Plasmids?

In bacteria, gene transfer occurs by the following processes, except:

Which of the following is NOT among the four basic shapes of bacteria?

Which of the following structures surrounds the bacterial cell's cytoplasm and regulates the flow of substances in and out of the cell?

Currently, the fourth most abundant chemical element in the universe is:

Statement I: Signal sequence of a polypeptide chain is hydrophobic in nature.
Statement II: Signal receptor particle (SRP) binds tightly to the ribosome that is synthesizing a polypeptide chain with a signal sequence.
Choose the most appropriate answer from the options given below:

Statement I: Diphthamide is a modified amino acid present in the elongation factor 2.
Statement II: It prevents translocation of the growing polypeptide chain.
Choose the most appropriate answer from the options given below:

The translation is accomplished by the ribosome, which links proteinogenic amino acids in the following order:

Match column I with column II:
A. F. Meischer
B. Griffith
C. Hershey and Chase
D. Watson and Crick
Match with the following:
I. DNA double helix
II. Nuclein
III. S. pneumoniae
IV. Bacteriophages
Choose the correct answer from the options given below:

Statement I: Histones are rich in arginine and lysine. Thus, they are positively charged proteins at physiological pH.
Statement II: Histones are the most evolutionary conserved proteins known.
Choose the most appropriate answer from the following options:

Processing, packaging the target proteins for export to cell organelles by shuttling is the job of