What are the three core tenets of classical cell theory?

Living organisms consist of one or more cells; cells are the basic structural and functional units of life; new cells arise from existing cells.

What nuclear feature distinguishes bacterial cells from typical eukaryotic cells?

Bacteria lack a membrane-bound nucleus; their chromosomal DNA lies in a nucleoid region.

How do genotype and phenotype differ?

Genotype is an organism's genetic makeup, including its alleles. Phenotype is its observable traits, which can reflect both genotype and environmental influences.

What does Mendel's law of segregation say about the two alleles at a diploid locus?

During gamete formation, the two alleles separate so that each gamete receives one. Under ordinary Mendelian segregation, either allele is equally likely to enter a gamete.

Does reverse transcription violate Crick's original central dogma?

No. The usual expression pathway is DNA → RNA → protein, while reverse transcriptase copies RNA into DNA. Crick's dogma excludes transfer of sequence information from protein back to nucleic acid or into another protein sequence.

Which RNA polymerase component recognizes the usual −10 and −35 promoter elements in E. coli?

The σ⁷⁰ sigma factor, which helps the bacterial RNA polymerase holoenzyme recognize these promoters.

How do innate and adaptive immunity differ in speed, recognition and memory?

Innate defenses act rapidly through inherited pattern-recognition mechanisms; prior exposure can alter them through trained immunity. A primary adaptive response usually takes days, uses clonally diverse antigen-specific B- and T-cell receptors, and can form long-lived memory.

Which innate immune receptors recognize pathogen-associated molecular patterns such as LPS?

Pattern-recognition receptors (PRRs), including Toll-like receptors. TLR4, together with its co-receptor MD-2, recognizes bacterial lipopolysaccharide (LPS).

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Livello	Fronte (Domanda / Termine)	Retro (Risposta / Spiegazione)
`basic`	What are the three core tenets of classical cell theory?	Living organisms consist of one or more cells; cells are the basic structural and functional units of life; new cells arise from existing cells.
`basic`	What nuclear feature distinguishes bacterial cells from typical eukaryotic cells?	Bacteria lack a membrane-bound nucleus; their chromosomal DNA lies in a nucleoid region.
`basic`	How do genotype and phenotype differ?	Genotype is an organism's genetic makeup, including its alleles. Phenotype is its observable traits, which can reflect both genotype and environmental influences.
`basic`	What does Mendel's law of segregation say about the two alleles at a diploid locus?	During gamete formation, the two alleles separate so that each gamete receives one. Under ordinary Mendelian segregation, either allele is equally likely to enter a gamete.
`intermediate`	What is homeostasis, and how does negative feedback support it?	Homeostasis keeps internal conditions within regulated ranges despite disturbances. Negative feedback detects a change and produces a response that opposes it. A regulated value can fluctuate, and its target can change; homeostasis is not an unchanging equilibrium.
`intermediate`	How does oxytocin participate in positive feedback during childbirth?	Cervical stretching promotes oxytocin release, which strengthens uterine contractions and produces more stretching. Delivery removes the stretching stimulus and ends this reinforcing loop.
`intermediate`	Which three conditions allow natural selection to change a population over generations?	Individuals vary; some variation is heritable; and heritable traits are associated with differences in reproductive success in a particular environment.
`intermediate`	How do homologous and analogous structures differ?	Homologous structures share an ancestral origin, although functions may differ, as with human arms and bat forelimbs. Analogous structures evolved independently for similar functions, as with bird and insect wings.
`advanced`	Does reverse transcription violate Crick's original central dogma?	No. The usual expression pathway is DNA → RNA → protein, while reverse transcriptase copies RNA into DNA. Crick's dogma excludes transfer of sequence information from protein back to nucleic acid or into another protein sequence.
`advanced`	Which RNA polymerase component recognizes the usual −10 and −35 promoter elements in E. coli?	The σ⁷⁰ sigma factor, which helps the bacterial RNA polymerase holoenzyme recognize these promoters.
`advanced`	How do innate and adaptive immunity differ in speed, recognition and memory?	Innate defenses act rapidly through inherited pattern-recognition mechanisms; prior exposure can alter them through trained immunity. A primary adaptive response usually takes days, uses clonally diverse antigen-specific B- and T-cell receptors, and can form long-lived memory.
`advanced`	Which innate immune receptors recognize pathogen-associated molecular patterns such as LPS?	Pattern-recognition receptors (PRRs), including Toll-like receptors. TLR4, together with its co-receptor MD-2, recognizes bacterial lipopolysaccharide (LPS).

4. Piano di studio di 8 settimane

Settimane 1–2: Fondamenti (basic): Completa i mazzi Base (32 carte/giorno) con 15–20 minuti di ripasso quotidiano.
Settimane 3–5: Approfondimento (intermediate): Aggiungi i mazzi Intermedi (20 nuove carte/giorno) formulando la risposta prima di girare la carta.
Settimane 6–7: Padronanza (advanced): Passa ai mazzi Avanzati (15 nuove carte/giorno) per preparare esami universitari o concorsi.
Settimana 8: Consolidamento: Ripassa le carte più complesse su flashcards.world fino a superare il 95% di accuratezza.

5. Errori comuni da evitare

Girare la carta troppo presto: Rispondi sempre ad alta voce o mentalmente prima di leggere il retro.
Studiare tutto il giorno prima dell'esame: La costanza quotidiana (20 min/giorno) moltiplica la ritenzione.
Ignorare il contesto: Studia gli esempi pratici riportati sul retro di ogni flashcard.

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