A virus is ______ than a bacterial cell, and a virus is composed of ________.
A. larger; nucleic acid within a protein capsid.
B. smaller; a eukaryotic cell with a cell wall.
C. smaller; nucleic acid within a protein capsid.
D. larger; a eukaryotic cell with a cell wall.
Answer: C
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How might a lack of neuropeptide Y in the hypothalamus affect the control of appetite?
A) The appetite would likely increase. B) The appetite would likely decrease. C) The appetite is unlikely to change because neuropeptide Y is not involved in appetite regulation.
Which of the following is not a property of an IgG heavy chain?
A) has one constant segment B) has one variable segment C) binds one light chain D) binds antigen at both ends E) binds complement in the constant region
Select the most correct statement regarding nucleic acids.
A) Three forms exist: DNA, RNA, and tDNA. B) DNA is a long, double-stranded molecule made up of A, T, G, and C bases. C) RNA is a long, single-stranded molecule made up of the bases A, T, G, and C. D) TDNA is considered a molecular slave of DNA.
Protein producing organelles are the
A) mitochondria. B) nucleus. C) ribosomes. D) Golgi apparatus. E) lysosomes.