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Key Facts: Esame di Stato Biologo Exam

4 tests

Exam format: 2 written tests, 1 laboratory practical, and 1 oral examination

D.P.R. 328/2001, Art. 32

36/60

Minimum passing score required on each examination test

D.M. 9 settembre 1957 & MUR Regulations

2 sessions/yr

National examination sessions held annually (summer and autumn)

MUR Annual Ordinanza Ministeriale

LM-6 / LM-7 / LM-8 / LM-9

Master's degree classes qualifying for Sezione A examination

D.P.R. 328/2001, Art. 31

FNOB

Federazione Nazionale degli Ordini dei Biologi regulatory order

Legge 3/2018 (Legge Lorenzin)

Professione Sanitaria

Official healthcare profession status under Ministry of Health supervision

Legge 3/2018, Art. 9

The Italian Biologist State Exam (Esame di Stato Biologo - Sezione A) is the statutory post-graduate licensure examination established under D.P.R. 328/2001 and Legge 3/2018 (Lorenzin Reform). Administered across designated state universities, it qualifies holders of biology and biotechnology master's degrees for full professional licensure as healthcare professionals in the FNOB register. Examination testing spans two written papers, a practical laboratory test, and an oral examination. Independent Biologo State Exam practice by OpenExamPrep provides a comprehensive 100-question English MCQ study resource.

Sample Esame di Stato Biologo Practice Questions

Try these sample questions to review concepts for the Esame di Stato Biologo exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1During eukaryotic nuclear DNA replication, which DNA polymerase is primarily responsible for the continuous synthesis of the leading strand?

A.DNA Polymerase ε (epsilon)

B.DNA Polymerase α (alpha) / primase complex

C.DNA Polymerase δ (delta)

D.DNA Polymerase γ (gamma)

Explanation: In eukaryotic DNA replication, DNA Polymerase ε (epsilon) catalyzes the high-fidelity, highly processive continuous synthesis of the leading strand. DNA Polymerase δ (delta) performs synthesis of the lagging strand Okazaki fragments, while Pol α/primase initiates RNA/DNA primers.

2During the initiation of mRNA transcription in eukaryotic cells, which general transcription factor contains the TATA-binding protein (TBP) subunit that directly recognizes the core promoter?

A.TFIIB

B.TFIID

C.TFIIE

D.TFIIH

Explanation: TFIID is the multi-subunit basal transcription complex composed of the TATA-binding protein (TBP) and numerous TBP-associated factors (TAFs). TBP specifically binds the minor groove of the core promoter TATA box, inducing DNA bending that facilitates the recruitment of TFIIA, TFIIB, and RNA Polymerase II.

3How does the enzymatic addition of acetyl groups to lysine residues on histone tails by Histone Acetyltransferases (HATs) affect chromatin structure and gene expression?

A.It neutralizes positive charges on lysine residues, weakening histone-DNA interactions and promoting transcriptional activation

B.It adds positive charges to histone tails, tightening nucleosome compaction into heterochromatin and silencing transcription

C.It recruits DNA methyltransferases (DNMTs) to methylate adjacent CpG islands, leading to permanent epigenetic silencing

D.It induces rapid histone ubiquitination and immediate proteasomal degradation of the core octamer

Explanation: Histone Acetyltransferases (HATs) transfer an acetyl group from acetyl-CoA to the ε-amino group of lysine residues on histone tails. This neutralizes the positive charge on lysine, reducing its electrostatic affinity for negatively charged DNA phosphate backbones. The resulting relaxed, open chromatin configuration (euchromatin) allows access to transcription factors and RNA polymerase II.

4In eukaryotic precursor messenger RNA (pre-mRNA) splicing, which specific nucleotide within the intron acts as the nucleophile during the first transesterification reaction?

A.The 3'-hydroxyl of the guanosine at the 5' splice site

B.The 2'-hydroxyl of a conserved invariant adenine at the branch point sequence

C.The 5'-phosphate of the thymidine at the polypyrimidine tract

D.The 3'-hydroxyl of the invariant uridine at the 3' splice junction

Explanation: The first step of spliceosome-catalyzed splicing involves an attack by the 2'-hydroxyl (-OH) group of an invariant adenine located at the branch point sequence upon the 5' phosphate at the 5' splice donor site (GU). This forms a 2'-5' phosphodiester bond, generating a free 5' exon and an intron-3' exon lariat intermediate.

5In the biogenesis and regulatory mechanism of microRNAs (miRNAs) in mammalian cells, which cytosolic RNase III enzyme cleaves the hairpin pre-miRNA into a mature miRNA duplex?

A.Drosha

B.Dicer

C.Argonaute 2 (AGO2)

D.Exportin-5

Explanation: Dicer is the cytoplasmic RNase III endonuclease that recognizes pre-miRNAs exported from the nucleus and cleaves the terminal loop, yielding a ~22-nucleotide mature double-stranded miRNA duplex. One strand (guide strand) is then loaded into the RNA-Induced Silencing Complex (RISC).

6A clinical geneticist identifies a pathogenic variant in the MT-TL1 gene encoding mitochondrial tRNA-Leu. What pedigree pattern and biological phenomenon explain variable clinical expressivity among maternal siblings?

A.Autosomal dominant inheritance with incomplete penetrance

B.Maternal (mitochondrial) inheritance with heteroplasmy

C.X-linked recessive inheritance with skewed lyonization

D.Genomic imprinting with paternal allele silencing

Explanation: Mitochondrial DNA (mtDNA) is inherited exclusively down the maternal lineage because sperm mitochondria are destroyed post-fertilization. Heteroplasmy describes the coexistence of varying proportions of wild-type and mutant mtDNA within cells and tissues, accounting for phenotypic variability among siblings based on threshold effects.

7In CRISPR-Cas9 genome editing, what is the mandatory structural requirement that must immediately flank the 3' end of the target DNA protospacer sequence for Streptococcus pyogenes Cas9 (SpCas9) binding and cleavage?

A.A protospacer adjacent motif (PAM) having the canonical sequence 5'-NGG-3'

B.A polyadenylation signal sequence 5'-AATAAA-3'

C.An inverted repeat capable of forming an intrinsic stem-loop hairpin

D.A 5'-TTTV-3' PAM motif recognized exclusively by the RuvC catalytic domain

Explanation: SpCas9 strictly requires a Protospacer Adjacent Motif (PAM) of 5'-NGG-3' directly adjacent to the 3' end of the 20-nucleotide target protospacer on the non-target DNA strand. Cas9's PAM-interacting domain interrogates the genome for this sequence prior to DNA unwinding and RNA-DNA hybridization.

8In Sanger dideoxy DNA sequencing, why does the enzymatic incorporation of a 2',3'-dideoxynucleoside triphosphate (ddNTP) terminate primer extension?

A.The ddNTP lacks a 3'-hydroxyl (-OH) group required to form the next phosphodiester bond

B.The ddNTP lacks a 5'-triphosphate moiety needed for nucleotide activation

C.The ddNTP induces an allosteric denaturation of the DNA polymerase active site

D.The bulky fluorophore on the base physically blocks entrance of incoming dNTPs into the replication fork

Explanation: DNA polymerases synthesize DNA by catalyzing a nucleophilic attack of the primer terminal 3'-hydroxyl (-OH) group onto the alpha-phosphate of an incoming dNTP. Because ddNTPs lack the 3'-OH group (having -H at both 2' and 3' positions), no further 5'->3' phosphodiester bond can be synthesized, terminating chain elongation.

9Which enzyme is capable of repairing single-stranded nicks and joining cohesive or blunt double-stranded DNA fragments by forming covalent phosphodiester bonds in molecular cloning?

A.T4 DNA Ligase

B.Taq DNA Polymerase

C.Alkaline Phosphatase (CIP)

D.Polynucleotide Kinase (PNK)

Explanation: T4 DNA Ligase, isolated from bacteriophage T4, utilizes ATP as a cofactor to catalyze the formation of a phosphodiester bond between adjacent 5'-phosphate and 3'-hydroxyl termini in duplex DNA. It efficiently joins both cohesive (sticky) and blunt ends during recombinant DNA vector construction.

10At the G1/S cell cycle checkpoint, how does the retinoblastoma protein (pRb) prevent premature progression into DNA replication?

A.By binding and sequestering E2F transcription factors in an unphosphorylated or hypophosphorylated state

B.By directly degrading cyclin E through ubiquitin-dependent proteasomal targeting

C.By phosphorylating and activating the p53 tumor suppressor transcription factor

D.By cleaving origin recognition complex (ORC) proteins from replication origins

Explanation: In early G1 phase, unphosphorylated or hypophosphorylated pRb binds to E2F transcription factors, repressing the transcription of genes required for S phase entry (e.g., Cyclin E, Cyclin A, DNA Pol α). Upon mitogenic signaling, Cyclin D-CDK4/6 complexes hyperphosphorylate pRb, releasing E2F to activate S-phase transcription.

About the Esame di Stato Biologo Exam

The Esame di Stato per l'abilitazione all'esercizio della professione di Biologo (Sezione A) is the statutory national licensing examination in Italy mandated by Presidential Decree D.P.R. 328/2001 and annual ministerial ordinances of the Ministero dell'Università e della Ricerca (MUR). Governed professionally under Legge 396/1967 and reformed into a recognized healthcare profession (professione sanitaria) under Legge 3/2018 (Legge Lorenzin), passing this examination is mandatory to register in Section A of the Ordine dei Biologi under the Federazione Nazionale degli Ordini dei Biologi (FNOB). Open to graduates holding a master's degree (Laurea Magistrale) in Biology (LM-6), Agricultural Biotechnology (LM-7), Industrial Biotechnology (LM-8), Medical/Veterinary/Pharmaceutical Biotechnology (LM-9), or Environmental Sciences (LM-75), the examination qualifies biologists to practice independently across clinical diagnostic laboratories, nutritional counselling, environmental monitoring and impact assessments (VIA/VAS), toxicological evaluation, and biomedical research. Independent Biologo State Exam practice by OpenExamPrep provides a rigorous English-language multiple-choice adaptation covering core theoretical, diagnostic, nutritional, ecological, and legal competencies.

Exam sponsor: Ministero dell'Università e della Ricerca (MUR) / designated universities. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

The official Italian State Licensing Examination for Biologists (Sezione A) is governed by D.P.R. 328/2001 (Art. 32) and annual ministerial ordinances issued by MUR. The examination comprises four sequential tests: (1) a first written test on cellular and molecular biology, genetics, and physiology; (2) a second written test on clinical microbiology, hygiene, nutrition, or environmental disciplines; (3) an experimental practical test involving biological, clinical, environmental, or microbiological laboratory techniques and data analysis; and (4) an oral examination covering the written papers, general biological sciences, professional deontology, and healthcare legislation. Passing requires scoring at least 36/60 (or 60%) in each individual test. Independent Biologo State Exam practice by OpenExamPrep provides an English-language MCQ study adaptation.

Time Limit

Multi-day examination session

Passing Score

36/60 on each examination test

Exam / Certification Fees

€49.58 state tax plus a contribution set by the chosen university

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

30 local questions (not an official percentage)

Cellular & Molecular Biology, Genetics & Physiology

Cellular and molecular biology, gene regulation, recombinant DNA, biochemistry, metabolic pathways, and human/animal physiology (D.P.R. 328/2001 Art. 32)

25 local questions (not an official percentage)

Clinical Microbiology & Clinical Pathology

Clinical bacteriology, virology, immunology, hematology, molecular diagnostic assays (qPCR, NGS, ELISA), and diagnostic biomarkers

20 local questions (not an official percentage)

Nutrition, Food Hygiene & Food Safety (HACCP)

Human nutrition, dietary assessment, nutritional biochemistry, food microbiology, food preservation, HACCP plans, and EU food hygiene regulations

15 local questions (not an official percentage)

Ecology & Environmental Monitoring

Ecosystem dynamics, bioindicators (IBE, IFF), ecotoxicology, bioremediation, water/air/soil quality standards (D.Lgs. 152/2006), and EIA (VIA/VAS)

10 local questions (not an official percentage)

Legislation, Deontology & Laboratory Quality

Health legislation (Legge 396/1967, Legge 3/2018 Lorenzin reform), FNOB Code of Deontology, laboratory quality standards (ISO 15189, ISO/IEC 17025), GLP, and biosafety

Preparing for the Esame di Stato Biologo Exam

What You Need to Know

Passing score: 36/60 on each examination test
Assessment: The official Italian State Licensing Examination for Biologists (Sezione A) is governed by D.P.R. 328/2001 (Art. 32) and annual ministerial ordinances issued by MUR. The examination comprises four sequential tests: (1) a first written test on cellular and molecular biology, genetics, and physiology; (2) a second written test on clinical microbiology, hygiene, nutrition, or environmental disciplines; (3) an experimental practical test involving biological, clinical, environmental, or microbiological laboratory techniques and data analysis; and (4) an oral examination covering the written papers, general biological sciences, professional deontology, and healthcare legislation. Passing requires scoring at least 36/60 (or 60%) in each individual test. Independent Biologo State Exam practice by OpenExamPrep provides an English-language MCQ study adaptation.
Time limit: Multi-day examination session
Exam / certification fees: €49.58 state tax plus a contribution set by the chosen university Official sources

Using Our Practice Resources

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Esame di Stato Biologo: Suggested Study Strategy

1Master the five core syllabus areas defined by D.P.R. 328/2001 Art. 32: molecular biology, clinical diagnostics, nutritional science, environmental ecology, and health legislation.

2Thoroughly review Italian health and professional statutes: Legge 396/1967, D.P.R. 328/2001, and Legge 3/2018 (Lorenzin Reform), as deontology and legal bounds are heavily queried in oral boards.

3Understand the laboratory accreditation requirements under ISO 15189 (medical laboratories) and ISO/IEC 17025 (testing laboratories), including internal quality control (IQC) and external quality assessment (EQA/VEQ).

4Review the metabolic pathways of human macronutrients and micronutrients, dietary guidelines (LARN - Livelli di Assunzione di Riferimento di Nutrienti ed energia per la popolazione italiana), and the legal boundaries of dietary elaboration.

5Study environmental monitoring indices used by Italian regional agencies (ARPA/ISPRA), including the Extended Biotic Index (IBE/STAR_ICMi), Fluvial Functioning Index (IFF), and contaminated site regulations under D.Lgs. 152/2006.

6Familiarize yourself with clinical diagnostic platforms, including real-time quantitative PCR (RT-qPCR), Next-Generation Sequencing (NGS), flow cytometry, ELISA, and standard hematological indices.

Frequently Asked Questions

What is the Italian Biologist State Exam (Esame di Stato Biologo Sezione A) and who must take it?

The Esame di Stato per l'abilitazione all'esercizio della professione di Biologo (Sezione A) is the statutory post-graduate licensing examination in Italy mandated by D.P.R. 328/2001. Under Italian law (Legge 396/1967 and Legge 3/2018 Lorenzin Reform), passing this examination is legally mandatory for graduates with qualifying master's degrees (such as LM-6 Biology, LM-7/LM-8/LM-9 Biotechnology) to obtain the protected title of Biologo, enroll in Section A of the Ordine dei Biologi (FNOB), and legally practice as an independent biologist, clinical laboratory director, or nutritional biologist.

How is the official examination structured and graded under D.P.R. 328/2001?

Under Article 32 of D.P.R. 328/2001, the Section A examination consists of four separate tests: (1) a first written test on cellular and molecular biology, genetics, and physiology; (2) a second written test on hygiene, nutrition, clinical pathology, or environmental sciences; (3) a practical laboratory test covering experimental protocols, technical reports, and diagnostic assays; and (4) an oral examination covering the written papers, general biological principles, health legislation, and the FNOB Code of Deontology. Each test is graded out of 60, with a minimum passing threshold of 36/60 required in every single test.

What is the professional status of biologists following Legge 3/2018 (Legge Lorenzin)?

With the enactment of Legge 11 gennaio 2018, n. 3 (known as the Legge Lorenzin), the profession of Biologist was formally classified as an autonomous healthcare profession (professione sanitaria) under the supervision of the Italian Ministry of Health (Ministero della Salute). The national body was restructured into the Federazione Nazionale degli Ordini dei Biologi (FNOB) with regional orders, and biologists are subject to mandatory continuing medical education (ECM - Educazione Continua in Medicina) and professional liability requirements.

Can a biologist prescribe diets and evaluate nutritional status in Italy?

Yes. Italian jurisprudence (Consiglio di Stato sentences and Ministry of Health opinions) affirms that a biologist registered in Section A of the Order can autonomously evaluate nutritional and energetic needs, design and elaborate personalized dietary regimens, and suggest food supplements for healthy individuals or those with diagnosed pathologies (in collaboration with a physician). However, biologists cannot diagnose pathologies or prescribe pharmacological drugs.

Why are these practice questions presented in English multiple-choice format?

The official Italian State Exam is administered in Italian through written essays, laboratory practicals, and oral interviews. Independent Biologo State Exam practice by OpenExamPrep provides a rigorous English-language multiple-choice question (MCQ) adaptation designed to help candidates thoroughly review core scientific mechanisms, diagnostic methods, Italian environmental and sanitary statutes, and deontology rules.