TEAS version 7 quizlet science

TEAS version 7 quizlet science Related

Review TEAS version 7 quizlet science related questions and content

What is the importance of RNA splicing?

  • A. Removes introns from the mRNA molecule
  • B. Adds the poly-A tail to the mRNA molecule
  • C. Activates the mRNA molecule for translation
  • D. Modifies the structure of the protein
Correct Answer: A

Rationale: RNA splicing is a crucial process in gene expression where non-coding regions called introns are removed from the pre-mRNA molecule, and the remaining coding regions called exons are joined together to form the mature mRNA molecule. This process ensures that only the protein-coding sequences are retained in the mRNA for translation, allowing for the production of functional proteins. Therefore, option A is the correct answer as it accurately describes the importance of RNA splicing in generating mature mRNA molecules for protein synthesis.

B) Adding the poly-A tail to the mRNA molecule is a post-transcriptional modification that occurs after RNA splicing and is not directly related to the process of removing introns.

C) Activating the mRNA molecule for translation is typically achieved through the addition of a 5' cap and the poly-A tail, rather than through RNA splicing.

D) Modifying the structure of the protein is not directly related to the process of RNA splicing, which primarily focuses on mRNA maturation by removing non-coding introns.

You may also like to solve these questions

Which vitamin requires the lymphatic system for proper absorption from the intestine?

  • A. Vitamin A
  • B. Vitamin C
  • C. Vitamin D
  • D. Vitamin B12
Correct Answer: C

Rationale: The correct answer is Vitamin D. Vitamin D requires the lymphatic system for proper absorption from the intestine. Unlike vitamins A, C, and B12, which are absorbed directly into the bloodstream, vitamin D is absorbed into the lymphatic system first before entering the bloodstream. Therefore, options A, B, and D are incorrect as they do not rely on the lymphatic system for absorption from the intestine.

What is the law that states energy can neither be created nor destroyed?

  • A. Law of Conservation of Matter
  • B. Law of Conservation of Energy
  • C. Law of Universal Gravitation
  • D. Law of Inertia
Correct Answer: B

Rationale: The correct answer is the Law of Conservation of Energy. This law states that energy cannot be created or destroyed, only transformed from one form to another. The Law of Conservation of Matter (Choice A) is related to mass and the preservation of mass in a closed system, not energy. The Law of Universal Gravitation (Choice C) describes the force of attraction between objects with mass. The Law of Inertia (Choice D) states that an object will remain at rest or in uniform motion unless acted upon by an external force.

What is the periodic table?

  • A. A table of elements that are arranged in order of increasing atomic number.
  • B. A table of elements that are arranged in order of increasing atomic mass.
  • C. A table of elements that are arranged in order of their reactivity.
  • D. A table of elements that are arranged in order of their color.
Correct Answer: A

Rationale: The periodic table is a tabular arrangement of the chemical elements, organized based on their atomic number, electron configurations, and recurring chemical properties. Elements are placed in rows (periods) and columns (groups) with similar properties. The elements are listed in order of increasing atomic number, which is the number of protons in the nucleus of an atom. This arrangement reveals a periodic repetition of chemical properties, forming the basis of the periodic law. Choice B, which suggests arranging elements based on increasing atomic mass, is incorrect because the periodic table is primarily organized by atomic number, not atomic mass. Choices C and D are also incorrect as the periodic table is not based on reactivity or color of elements, but rather on atomic number and properties.

Memory B cells and memory T cells are crucial for immunological memory. How does immunological memory enhance the immune response upon re-exposure to a pathogen?

  • A. It increases the production of the same ineffective antibodies.
  • B. It allows for a quicker and more robust immune response.
  • C. It suppresses the immune system to prevent overreaction.
  • D. It triggers a completely different immune response.
Correct Answer: B

Rationale: Immunological memory enhances the immune response upon re-exposure to a pathogen by allowing for a quicker and more robust immune response. Memory B cells and memory T cells are primed to recognize the pathogen quickly and mount a faster and more effective response, leading to a more efficient clearance of the pathogen. Choice A is incorrect because immunological memory does not increase the production of ineffective antibodies but rather promotes the production of specific antibodies that are effective against the pathogen. Choice C is incorrect as immunological memory does not suppress the immune system; instead, it enhances the response. Choice D is incorrect because immunological memory leads to a recall of the specific immune response mounted during the initial exposure, not a completely different response.

What is the process by which a solid changes directly into a liquid?

  • A. Melting
  • B. Condensation
  • C. Sublimation
  • D. Deposition
Correct Answer: A

Rationale: The correct answer is A: Melting. Melting is the process through which a solid substance changes directly into a liquid. Choice B, Condensation, is the transition from gas to liquid. Choice C, Sublimation, refers to the direct change from solid to gas. Choice D, Deposition, is the direct transition from gas to solid, not from solid to liquid as in the question.

Copyright © 2025 Nokea. All rights reserved.