Biology Quiz

Which of the following techniques compares short tandem repeat (STR) regions among individuals for identification?

The checkpoint that verifies DNA is completely replicated and undamaged before a cell enters mitosis is called:

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

Why does the lagging strand of DNA require more DNA ligase activity during replication than the leading strand?

What is the fundamental unit of heredity that occupies a specific locus on a chromosome?

Huntington’s disease, characterized by neurodegeneration and anticipation, is inherited in which manner?

Pluripotent stem cells are characterized by their ability to:

The insulin receptor has intrinsic kinase activity. Upon insulin binding, which type of residue on the receptor is autophosphorylated?

Which characteristic is common to Type II restriction endonucleases?

Which organelle in animal cells contains its own circular DNA and is involved in ATP production?

Activation of a Gq-coupled receptor leads to which immediate change in second messenger levels?

A one-nucleotide insertion in the coding sequence of a gene will most likely result in which type of mutation?

Which structural feature is shared by B-DNA, A-DNA, and Z-DNA?

Histone H1 differs from the core histones (H2A, H2B, H3, H4) because it primarily functions to:

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

Actin filaments (microfilaments) participate in all the following processes except:

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

The 5′ cap added to eukaryotic mRNAs is:

Tight junctions in epithelial cells are critical because they:

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