_________ is the division of the nucleus and DNA during cell division.
Cytokinesis
Transcription
Interphase
Mitosis
Translation
The Correct Answer is D
A. Cytokinesis: Cytokinesis is the process where the cytoplasm divides after mitosis, resulting in two separate daughter cells. It follows nuclear division but is not the division of the nucleus and DNA itself.
B. Transcription: Transcription is the process of copying genetic information from DNA into messenger RNA (mRNA). It is part of protein synthesis, not cell division.
C. Interphase: Interphase is the phase of the cell cycle where the cell grows, performs normal functions, and duplicates its DNA in preparation for division. However, it is not the stage where the nucleus and DNA actually divide.
D. Mitosis: Mitosis is the process of nuclear division where replicated chromosomes are separated into two nuclei. This ensures that each daughter cell receives an identical set of genetic material.
E. Translation: Translation is the process where ribosomes synthesize proteins using mRNA as a template. It occurs in protein production, not during nuclear or DNA division.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. adipose CT:Adipose tissue primarily stores fat for energy and cushioning and does not provide the elasticity or vibration properties required for vocal cords.
B. elastic CT:Elastic connective tissue contains abundant elastic fibers, allowing the vocal cords to stretch and recoil during sound production. Its flexibility and resilience are essential for the rapid vibrations needed for speech.
C. areolar CT:Areolar tissue is a loose connective tissue that provides support and cushioning but lacks the dense elastic fibers necessary for vocal cord function.
D. elastic cartilage CT:Elastic cartilage provides flexible support in structures like the ear and epiglottis but is not the main tissue responsible for the vibration and elasticity of vocal cords.
Correct Answer is C
Explanation
A. apocrine glands:Apocrine glands are sweat glands found in regions like the axillae and groin. They secrete a thicker fluid that, when acted upon by skin bacteria, produces body odor. They are not responsible for earwax production.
B. eccrine glands:Eccrine glands are the most numerous sweat glands, found across much of the skin. They secrete a watery solution important for thermoregulation but do not contribute to earwax formation.
C. ceruminous glands:Ceruminous glands are specialized modified apocrine glands located in the external auditory canal. They produce cerumen, or earwax, which protects the ear canal by trapping debris and providing antimicrobial properties.
D. merocrine glands:Merocrine secretion refers to the method by which many glands, including eccrine sweat glands, release their products through exocytosis. These glands do not produce earwax and are mainly involved in sweat production.
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