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AP Bio Central Dogma Quiz Part 2

A detailed illustration of the central dogma of molecular biology, showing the flow from DNA to RNA to protein, with labeled structures such as ribosomes and RNA polymerase, in a vibrant, educational style.

AP Biology Central Dogma Mastery Quiz

Test your knowledge of the central dogma of molecular biology with this engaging quiz! Discover the intricate processes that translate genetic information into functional products, and deepen your understanding of DNA, RNA, and protein synthesis.

This quiz covers key concepts, including:

Transcription and translation processes
Gene products and their functions
Understanding operons and eukaryotic chromosomes

12 Questions3 MinutesCreated by InvestigatingCell100

Name

The central dogma of molecular biology states that _______ is (are) transcribed into _______, which is translated into _______.

A) genes; polypeptides; gene products

B) protein; DNA; RNA

C) DNA; mRNA; tRNA

D) DNA; RNA; protein

A gene product can be a(n)

A) enzyme

B) polypeptide

C) RNA

D) All of these are correct

The enzyme(s) that catalyze(s) the synthesis of RNA is (are)

A) RNA polymerase

B) tRNA synthetase

C) ribosomal RNA

D) all of these are correct

Model eukaryotic organisms such as stickleback fish have helped biologists understand

A) genes involved in development

B) the ways in which genes are expressed

C) genes encoding proteins that are essential for all cells

D) All of these are correct

Viruses consist of

A) a nucleic acid core and a protein capsid.

B) a cell wall surrounding nucleic acid.

C) RNA and DNA enclosed in a membrane.

D) a protein core surrounded by a nucleic acid capsid.

An operon

A) is regulated by a repressor binding at the promoter.

B) has structural genes that are all transcribed from same promoter.

C) has several promoters, but all of the structural genes are related biochemically.

D) is a set of structural genes all under the same translational regulation.

Eukaryotic chromosomes

A) are circular and contain origins and terminator sequences.

B) are linear and have origins and telomeres.

C) contain coding and noncoding sequences.

D) Both B and C.

DNA fragments are separated using gel electrophoresis

A) because DNA is pulled through the gel toward the negative end of the field.

B) because larger DNA fragments move faster through the gel than smaller DNA fragments.

C) to identify and isolate DNA fragments.

D) to synthesize DNA for cloning.

Complementary base pairing is important for

A) ligation reactions with blunt-end DNA molecules.

B) synthesizing DNA molecules from mRNA templates.

C) restriction endonucleases to cut cell walls.

D) hybridization between DNA and transcription factors.

The transcription complex includes _______ and _______.

A) transcription factors; promoters

B) regulator proteins; regulators

C) anticodons; polypeptide chains

D) Both A and B.

DNA fingerprinting works because

A) genes containing the same alleles make it simple to compare different individuals.

B) PCR allows amplification of proteins from single cells.

C) there are multiple alleles for some DNA sequences, making it possible to obtain unique patterns for each individual.

D) DNA in the skin cells is very diverse.

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