Which molecules are involved in proteins synthesis?
a. rRNA, tRNA, mutagens
b. transfer RNA, introns, and mutagens
c. mRNA, introns, and ribosomal RNA
d. mRNA, rRNA, and tRNA
Ans: d. mRNA, rRNA, and tRNA
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Which structure is common to plant and animal cells?
A) chloroplast B) wall made of cellulose C) central vacuole D) mitochondrion E) centriole
Persistent viruses that can reactivate periodically are ________.
A. syncytia B. chronic latent viruses C. inclusion bodies D. cytopathic E. oncoviruses
Which of the following brain structures would cause central diabetes insipidus if it were damaged?
A) cerebrum B) pons C) cerebellum D) hypothalamus
An individual basidium ultimately produces
A. four haploid spores, each genetically different. B. eight diploid spores. C. four genetically identical haploid spores. D. eight haploid spores, of which there are two each of four different genetic types. E. eight identical haploid spores.