The number of chromosomes in _ remains constant generation after generation.
Correct answer: A. All individuals of the same species
- A. All individuals of the same species
- B. All individuals of different species
- C. Few individuals of the same species
- D. Few individuals of different species
Explanation
The number of chromosomes is a fundamental characteristic of a species and is maintained across generations to ensure genetic stability and proper functioning. This is why, for example, humans have 46 chromosomes, regardless of individual differences. A change in chromosome number often leads to genetic disorders, such as Down's syndrome or Turner's syndrome, which are exceptions and not the norm. Options B, C, and D are incorrect as they imply variance in chromosome numbers either across different species or within a subset of individuals, which contradicts the principle of genetic consistency within a species.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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