The genome of most plant viruses consists of what kind of RNA?
a. rRNA
b. mRNA
c. ssRNA
d. dsRNA
e. SRP RNA
c
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Which of the following endocrine organs and hormones are not paired correctly?
A. anterior pituitary gland: vasopressin B. posterior pituitary gland: oxytocin C. hypothalamus: releasing factors D. anterior pituitary gland: growth hormone E. posterior pituitary gland: antidiuretic hormone
Viruses that infect bacteria are called ________.
A. viroids B. bacteriophages C. plasmids D. vectors
The primary structure of a polypeptide is:
A) the three-dimensional structure of the protein B) the specific linear sequence of amino acids that constitutes the polypeptide chain C) the nucleotide sequence of the tryptophan tRNA D) the DNA sequence that encodes the protein
Developmental problems present at birth are known as ________
A) birth defects B) type 2 diabetes C) gastrulation D) teratogenic