If Adenine makes up approacimately 23% of the nucleotides in a sample of DNA from a leaf cell, what percent of the nucleotides will be Thymine? A)46
B)27
C)23
D)54

Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation. a. false b. true

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans