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The diameter of Earth is about 13,000 km. What distance does light travel in one second, in terms of the diameter of Earth?
Sex Chromosome
A type of chromosome involved in determining the sex of an organism, typically referred to as X or Y chromosomes in many species.
Male
Refers to the sex that is typically associated with the production of small gametes or sperm in the context of sexual reproduction.
Female
Pertaining to the sex that is typically characterized by the production of ova (eggs) and, in many species, by having two X chromosomes.
Pyrimidines
One of the two types of nitrogenous bases found in nucleic acids, including cytosine, thymine (in DNA), and uracil (in RNA).
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