Down syndrome _____.
A) is observed only in females
B) is also known as trisomy 21
C) affects only the central nervous system
D) results from a deletion
E) is a Y-linked disorder, passed directly from father to son
Answer: B) is also known as trisomy 21
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In sexual reproduction in eukaryotes, each parent contributes one set of chromosomes to the offspring.
a. true b. false
Which process seems to be the most similar between eukaryotic and prokaryotic genetic regulations?
A) 5'-capping regulation B) RNA splicing regulation C) intron/exon shuffling D) transcriptional regulation E) poly(A) tail addition
An effective vaccine to prevent infection with Epstein-Barr virus (EBV, HHV-4) is available.
Answer the following statement true (T) or false (F)
When membrane proteins on an olfactory neuron are stimulated by the binding of a specific chemical, what is the immediate result?
A. Membrane hyperpolarization B. Neurotransmitter release C. Membrane depolarization D. Membrane repolarization E. Active ion transport