Examlex
Using the data in the figure shown below, identify the spectral type of a star that has a main-sequence lifetime of about 500 billion years.
Chromosomes
Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA).
Basic Units
The fundamental components or building blocks of a system, structure, or theory.
Chromosomes
Structures within cells that contain DNA and carry genetic information for the development and functioning of living organisms.
Genes
The basic physical and functional units of heredity, made up of DNA, that influence traits and characteristics.
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