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HESI A2 BIOLOGY QUESTIONS EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -100 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: In a cell, reactions take place in a series of steps called:
- Metabolic pathways
- Chemical bonding
- Synthesis
- Hydrolysis
Answer:
- Metabolic pathways
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Question 2: Imagine that two parents both carry the recessive gene for cystic fibrosis. Any homozygous recessive offspring will manifest the disease. What percentage of the offspring is predicted to be carriers but not manifest the disease?
B. 25%
C. 50%
D. 100%
Answer:
C. 50%
Question 3: How does yeast reproduce?
- Binary fission
- Spore formation
- Budding
- Cloning
Answer:
- Budding
- Mitosis
- Binary fission
- Meiosis
- Cytokinesis
Question 4: A cell division occurs in a human. The resulting cells contain 23 chromosomes.This is a description of gametes formed by which process?
Answer:
- Meosis
Question 5: At which phase of meiosis does crossing over occur?
- Prophase I
- Prophase II
- Metaphase I
- Metaphase II
Answer:
- Prophase I
Question 6: During cell respiration, the conversion of glucose results in an overall production of how many ATP molecules?
- 2
- 16
C. 18-24
D. 32-36
Answer:
D. 32-36
Question 7: What is the probability that a recessive trait would be expressed in an offspring if two parents who are both heterozygous for the desired trait were crossed?
A. 100%
B. 25%
C. 50%
D. 25%
Answer:
D. 25%
Question 8: Which of the biologic molecules are components of the molecules of inheritance?
- Carbohydrates
- Lipids
- Proteins
- Nucleic acids
Answer:
- Nucleic acids
Question 9: In which phase of mitosis do new nuclear membranes from around sets of chromosomes?
- Prophase
- Anaphase
- Telophase
- Interphase
Answer:
- Telophase
Question 10: Which bacteria are spherical in shape?
- Clostridia
- Bacilli
- Spirilla
- Cocci
Answer:
- Cocci
Question 11: Beeswax is an example of what kind of molecule?
- Lipid
- Carbohydrate
- Protein
- Nucleic acid
Answer:
- Lipid
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