HESI A2 Biology Entrance Exam (with verified answers) / Latest 2024

In which phase of the cell cycle is DNA replicated? A) G1 B) S C) G2 D) D1 ANS - B) S Which of the following processes reduces cells originally classified as diploid to haploid? A) Meiosis. B) Mitosis. C) Both meiosis and mitosis. D) Neither meiosis and mitosis. ANS: - A) Meiosis. Which of the following is an example of a cell created by meiosis? A) Kidney cell. B) Sperm cell. C) Brain cell. D) Skin cell. ANS: - B) Sperm cell The Krebs cycle is a process described as: A) the creation of ATP and Pyruvate. B) the creation of GTP and NADH. C) the process by which plants take in carbon dioxide and produce oxygen. D) a linear method of creating energy. ANS: - B) the creation of GTP and NADH. The plasma membranes of cells are composed of: A)a single layer of phospholipid molecules. B)a bilayer of phospholipid molecules. C) proteins that act as transport highways. D) mitochondria. ANS: - B) a bilayer of phospholipid molecules. Which of the following activities does NOT lead to cellular energy production? A) Glycolysis. B) Gluconeogenesis. C) Oxidative Phosphorylation. D) Cellular Respiration. ANS: - B) Gluconeogenesis. Using garden peas, which of the following scientists discovered the basic principles of genetics? A) Galileo. B) Mendel. C) Curie. D) Hawking. ANS: - B) Mendel. The alternative versions of a single gene are known as: A) traits. B) characteristics. C) RNA. D) alleles. ANS: - D) alleles. What device makes it possible to predict the genotype and phenotype of the offspring of sexual reproduction? A) Punnett square. B) Chi square. C) PCR. D) Microscope. ANS: - A) Punnett square.