A nucleotide of DNA may contain adenine, guanine, cytosine, or thymine. What is each of these components? A. 5-carbon sugar
B. Nitrogenous base
C. Phosphate Group
D. Nucleic Acid

20 the compound al(nh3)2 has atoms of nitrogen.

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.

Which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton