7.Chromosomes contain basic hereditary units . What are they called ? *
1 point
A] Chromatids
B] chromatin
C] Gene
D] Nucleolus
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A gene is a segment of DNA that carries information from parents to children and determines the heredity characters in the offspring. Genes are organized and packaged in units called as “chromosomes.”
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chromatin sure bcoz I'm studying this chapter on biology
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