Which of the following is a double-helix-shaped molecule that contains genetic information?
nucleus
genotype
DNA
Chromosome
The Correct Answer is C
A. nucleus: The nucleus is a cell structure that houses genetic material but is not itself a molecule; it contains chromosomes made of DNA.
B. genotype: Genotype refers to an individual’s genetic makeup (the set of genes), not a physical molecule.
C. DNA: DNA (deoxyribonucleic acid) is the double-helix molecule that carries genetic information.
D. chromosome: A chromosome is a packaged structure of DNA and proteins (histones); it contains DNA but is not the name of the double-helix molecule itself.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. ignore information contradicting previous knowledge: Ignoring contradictory information is a biased response (not a formal cognitive process in Piaget’s terms) and does not describe accommodation.
B. use their existing schemes to deal with new information or experiences: That describes assimilation (fitting new info into existing schemes), not accommodation.
C. try to balance conflicting information: Trying to achieve balance between assimilation and accommodation is closer to equilibration, not the definition of accommodation itself.
D. adjust old schemes to fit new information: Accommodation is precisely modifying existing cognitive schemas to incorporate new information or experiences.
Correct Answer is D
Explanation
A. denial, bargaining, anger, depression, acceptance: This order incorrectly places bargaining before anger; the classic sequence has anger before bargaining.
B. bargaining, anger, depression, denial, acceptance: This sequence is out of order (denial normally comes first).
C. anger, depression, denial, bargaining, acceptance: This sequence misplaces denial and bargaining relative to the commonly cited order.
D. denial, anger, bargaining, depression, acceptance: This is the standard Kübler-Ross sequence.
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