Genetic information describing the characteristics of an organism is found in which of the following?
Nuclei
Membranes
Cilia
Ribosomes
The Correct Answer is A
Nuclei. Genetic information describing the characteristics of an organism is found in the nuclei of its cells. The nucleus contains the organism's DNA, which carries the genetic information that determines its traits.
B. Membranes are structures that surround and enclose cells and organelles, but they do not contain genetic information.
C. Cilia are hair-like structures that protrude from the surface of some cells and are involved in movement, but they do not contain genetic information.
D. Ribosomes are organelles that are involved in protein synthesis, but they do not contain genetic information.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The function of a totipotent cell is to develop into any kind of cell ¹. Totipotent cells have the capacity to produce all adult cell types and can enter the germ line, contributing genetic material to succeeding generations ⁴. They have the ability to self-replicate, producing daughter cells that are identical to the parent.
The other options are not correct because they do not accurately describe the function of a totipotent cell. Fighting infectious diseases, aiding in the maturation of sex cells, and carrying electrical impulses are not functions performed by totipotent cells.
Correct Answer is B
Explanation
The relaxation of the chambers of the heart during the cardiac cycle is called diastole. The cardiac cycle is a sequence of events that occurs when the heart beats ². It consists of two phases: systole, when the heart contracts and pumps blood into circulation, and diastole when the heart relaxes and fills with blood.
The other options are not correct because they do not accurately describe the relaxation of the chambers of the heart during the cardiac cycle. Tachycardia is a rapid heart rate, bradycardia is a slow heart rate, and systole is the contraction of the heart chambers.
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