The recessive trait is expressed in an individual when ________.
A. the individual has two dominant alleles
B. the individual has one recessive allele only
C. the individual has one recessive allele and one dominant allele
D. the individual has two recessive alleles
Answer: D
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Chemical reactions involving ________ have been proposed as energy-yielding reactions for primitive organisms
A) Fe, O2, and H2 B) S, O2, and H2 C) S, and O2 D) S, and H2
in addition to pyruvate, glycolysis results in the production of two molecules of _____
Fill in the blank(s) with the appropriate word(s).
What is the eukaryotic chromosome composed of?
a. DNA and carbohydrate b. DNA only c. DNA and protein d. RNA only
Which of the following is/are TRUE regarding the suprachiasmatic nucleus (SCN)?
a. GABA is released from neurons in the SCN b. lesions in the SCN disrupt circadian rhythms c. SCN neurons project to the hypothalamus, midbrain, and diencephalon d. all of the above e. a and b