genotype determines phenotype
a. true
b. false
Answer: a. true
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A) Peptostreptococcus B) Sarcina C) Staphylococcus D) Streptococcus
The majority of Drosophila embryo segments will become part of the ________ in an adult fly.
A. thorax B. bithorax complex C. head D. head or thorax E. abdomen
Considering the principle of complementary base pairing, you would expect an equal ratio of which two nitrogenous bases in a DNA molecule?
A) adenine and guanine B) thymine and cytosine C) cytosine and guanine D) guanine and thymine E) uracil and adenine
Certain groups of cells move inward from the surface of the blastula in a carefully orchestrated migration called what?
A. Morula formation B. Blastulation C. Archenteron formation D. Gastrulation E. Cleavage