Biology Quiz

Which chromatography technique separates proteins primarily based on size using a gel matrix?

DNA methylation at CpG islands in gene promoters typically leads to:

One gene’s product is epistatic to another gene’s product, meaning:

Which cytoskeletal filament requires ATP hydrolysis for its polymerization?

Sanger (dideoxy) sequencing terminates DNA chain elongation using:

Which organelle is primarily responsible for lipid synthesis and detoxification of drugs in liver cells?

In Northern blotting, the labeled probe hybridizes to:

Why is fetal bovine serum commonly added to cell culture media?

Which organelle contains hydrolytic enzymes and is involved in the degradation of cellular components during autophagy?

In Southern blotting, what type of probe is used to detect specific DNA sequences?

In a DNA molecule, 5′ to 3′ synthesis means:

Overexpression of the Bcl-2 protein in a cell would most likely result in which effect?

What is the sedimentation coefficient (S value) of a complete eukaryotic ribosome?

Which DNA repair pathway primarily corrects UV-induced thymine dimers?

Why is the G0 phase considered distinct from G1 in the cell cycle?

Which cytoskeletal element is directly involved in separating sister chromatids during anaphase of mitosis?

Monoclonal antibodies differ from polyclonal antibodies in that monoclonals:

In bacterial transcription, the σ (sigma) factor of RNA polymerase is required for:

Nucleosomes are composed of DNA wrapped around an octamer of histones. How many base pairs of DNA are wrapped around one nucleosome core?

In biological membranes, unsaturated fatty acid chains cause which of the following effects on membrane fluidity?