Life is thought to have evolved from complex molecules formed by the interaction of smaller molecules in oceans and the atmosphere. The substance which brought these molecules together to interact is
A. water.
B. buffers.
C. hydrogen.
D. salts.
E. acids.
Answer: A
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Due to the diversity of retroviruses, they can be placed into more than one Baltimore system group.
Answer the following statement true (T) or false (F)
The pattern of genetic transmission typical of a multifactorial trait is
A) discontinuous distributions such as 31. B) that of Mendelian inheritance. C) continuous variation of phenotypic expression. D) a 9331 ratio.
The energy needed to polymerize DNA is supplied by
A) the hydrolysis of the phosphate bonds of ATP by an accessory protein that is part of the DNA polymerase holoenzyme. B) the hydrolysis of the phosphate bonds of ATP or GTP, depending on the form of DNA polymerase. C) the hydrolysis of the phosphate bonds of the deoxynucleoside triphosphates that are being added to the new DNA chain. D) the formation of the covalent bond between the phosphate of the nucleoside and the hydroxyl group. E) the hydrolysis of the RNA primers used in DNA replication.
Mendel's finding that the inheritance of one trait had no effect on the inheritance of another became known as the
A.) law of dominance B.) law of independent assortment C.) law of universal inheritance D.) law of separate convenience