An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called
A. dominant.
B. codominant.
C. incompletely dominant.
D. recessive.
E. pleiotropic.
D. recessive.
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Although the Proconsul fossil has a monkeylike body, it is considered the oldest (20 mya) fossil with hominoid
features such as larger canine teeth. ____________________ Indicate whether the statement is true or false.
Tumor suppressor genes can be split into the two categories of ________ and ________ genes
Fill in the blank with correct word.
Which one of the following is NOT an example of behavior?
A. A plant bending toward a light B. A student sleeping in class C. The wind rustling fallen autumn leaves D. A cat purring
During the process of phosphorylation, ____.
A. a molecule gains a phosphate group B. a molecule synthesizes a phosphate group C. molecules become more stable D. molecules are passed to enzymes E. ADP is produced from ATP