Question 1
Which cell organelle is surrounded by a double membrane and possesses its own circular DNA and 70S ribosomes, supporting the endosymbiotic theory?
Correct Answer:
Mitochondria (and Chloroplasts)
Question 2
In which phase of the eukaryotic cell cycle does DNA replication (synthesis) take place?
Correct Answer:
S phase of Interphase (Synthesis phase)
Question 3
If a segment of a template DNA strand has the sequence 3'-TAC GGA CTT GAT-5', what is the complementary mRNA sequence synthesized during transcription?
Correct Answer:
5'-AUG CCU GAA CUA-3'
Question 4
How many molecules of ATP are generated per molecule of glucose during aerobic cellular respiration in eukaryotic cells (glycolysis, pyruvate oxidation, Krebs cycle, and oxidative phosphorylation)?
Correct Answer:
36 to 38 ATP molecules (or ~30–32 ATP in modern biochemical models)
Question 5
During which phase of meiosis do homologous chromosome pairs undergo synapsis and crossing over (recombination)?
Correct Answer:
Prophase I
Question 1
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Prepare with the Armenia Biology Unified Exam Practice Questions - Unified Entrance Examination - Biology (Կենսաբանություն) Exam practice quiz. This question bank includes 100 questions covering primary, blood, human, cells, and function. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Armenia Biology Unified Exam Practice Questions - Unified Entrance Examination - Biology (Կենսաբանություն) Exam

This practice set contains 100 questions from the matching question bank and focuses on primary, blood, human, cells, and function. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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