which of the choices below are the reproductive cells produced by meiosis
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ATI TEAS 7

ATI TEAS Science

1. Which of the following are the reproductive cells produced by meiosis?

Correct answer: D

Rationale: The correct answer is D. Gametes are the reproductive cells produced by meiosis. Meiosis is the cell division process that results in the formation of gametes, which are sperm cells in males and egg cells in females. Genes (A), alleles (B), and chromatids (C) are not the reproductive cells produced by meiosis. Genes are units of heredity, alleles are different forms of a gene, and chromatids are duplicated chromosomes involved in cell division.

2. What is the primary composition of the stratum corneum, the outermost layer of the epidermis?

Correct answer: A

Rationale: The stratum corneum, the outermost layer of the epidermis, is primarily composed of keratinized dead cells. These cells are flattened, fully keratinized, and lack nuclei, serving a protective function for the skin. Melanocytes are responsible for producing melanin, providing skin pigmentation. Langerhans cells are involved in the immune response within the skin. Merkel cells are associated with sensory functions in the skin, particularly in touch sensations. Therefore, the correct answer is A as it accurately reflects the main constituent of the stratum corneum, which acts as a barrier against external factors.

3. Which part of the brain plays a crucial role in the regulation of balance, coordination, and posture?

Correct answer: C

Rationale: The cerebellum is the part of the brain that plays a crucial role in the regulation of balance, coordination, and posture. It receives information from the sensory systems, the spinal cord, and other parts of the brain to coordinate voluntary movements. While the thalamus is involved in relaying sensory and motor signals to the cerebral cortex, the cerebrum is responsible for higher brain functions such as thought and action. The hypothalamus is involved in various bodily functions including the regulation of body temperature, hunger, and thirst, but it is not primarily responsible for balance, coordination, and posture. Therefore, the correct answer is the cerebellum.

4. What type of particle carries no charge and mediates the strong nuclear force between protons and neutrons?

Correct answer: C

Rationale: The correct answer is C: Gluon. Gluons are the particles responsible for mediating the strong nuclear force between protons and neutrons. They are the carriers of this force. Choice A, Electron, is incorrect as electrons are negatively charged. Choice B, Photon, is incorrect as photons are chargeless particles of light. Choice D, Neutrino, is incorrect as neutrinos are neutral particles with minimal mass and weak interactions with matter, not involved in mediating the strong nuclear force between protons and neutrons.

5. Which force opposes the relative motion between surfaces in contact?

Correct answer: B

Rationale: The correct answer is B: Frictional force. Frictional force opposes the relative motion between surfaces in contact. When two surfaces are in contact and one tries to slide over the other, the frictional force resists this motion, making it harder for the surfaces to move relative to each other. Choice A, tension force, is incorrect because tension force is a force transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends. Choice C, gravitational force, is incorrect as it is the force of attraction between two masses. Choice D, magnetic force, is incorrect as it is the force exerted between magnetic objects.

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