a pentose sugar important as a component of ribonucleic acid
However, the ribose sugar component of RNA is slightly different chemically than that of DNA. RNA has a 2' oxygen atom that is not present in DNA. Other fundamental structural differences exist.
an allele that produces its characteristic phenotype only when its paired allele is identical
On the other hand, a recessive allele will be expressed only if there are two identical copies of that allele, or for a male, if one copy is present on the X chromosome.
the sex chromosome that is present in both sexes: singly in males and doubly in females
On the other hand, a recessive allele will be expressed only if there are two identical copies of that allele, or for a male, if one copy is present on the X chromosome.
Created on 三月 24, 2010
(updated 三月 24, 2010)
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