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Biology and Biochemistry Quiz

Test your knowledge of biology and biochemistry with our comprehensive quiz! This quiz consists of 17 questions that cover various topics, including immunology, molecular biology, and genetics.

Features:

Multiple choice and checkbox questions
Assess your understanding of key concepts
Ideal for students, teachers, and biology enthusiasts

17 Questions4 MinutesCreated by AnalyzingGene32

A histone octamer has pproximately

A. 50 base pairs of DNA wrapped around it

B. 147 base pairs wrapped around it

C. 200 base pairs wrapped around it

Both nucleic acid and protein sequences can be compared to detect homology. Which would have smaller likelihood of random agreement?

A. Alignments of 6 nucleic acids

B. Alignments of 6 amino acids

C. Both are equally good

Convergent evolution is the process by which:

A. Relations between different proteins can be assessed base on some biological characteristic (e. g. Amino acid sequences

B. Proteins with different properties are derived from a common ancestor

C. Different evolutionary pathways arrive at the same solution to a biochemical problem

Antibody diversity is generated through different combinations of:

A. A recombination and mutation of variety of V, D and J genes

B. Approximately 40 different V genes

C. IgA IgD, Ige, IgG, IgM heavy or light chains

Hypervariable regions of immunoglobulins are found:

A. In light chains exclusively

B. In heavy chains exclusively

C. In light and heavy chains

Intracellular protein digestion by the proteasome is important for

A. Identifying extracellular pathogens

B. Eliminating toxins

C. Identifying intracellular pathogens

The role of the helper T cell receptor is to

A. Present peptides to the cytotoxic T cell

B. Present peptides to the antibody producing B cell

C. Recognize non-self peptides

Heterogeneous mixtures of antibodies, each specific for one of the various epitopes on an antigen can be shortly described as

A. Monoclonal antibodies

B. Polyclonal antibodies

C. Antigenic determinants

The indirect ELISA is used to detect:

A. Presence of antibody

B. Presence of antigen

C. Presence of epitope

En indirekte ELISA finder antibody og en direkte ELISA finder antigener.

Fluorescence-labelled antibodies can be used for:

A. Immunoelectron microscopy B. To reveal the location of a protein

B. To reveal the location of a protein of interest

C. To produce polyclonal antibodies

Which combination of purine-pyrimidine pares is correct:

Adenine + guanine

Cytosine + guanine

Thymine + uracil

The backbone of nucleic acid is:

The chain of sugars linked by phosphodiester bridges

Three components: a sugar, a phosphate, and one base

Nucleosides joined to three phosphoryl groups

Separation of DNA strands during replication is performed by:

Specific enzymes, termed polymerase

Specific enzymes, termed ligase

Specific enzymes, termed helicases

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