Gamle tests
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
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.
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
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