The instructions for assembling proteins are contained in the
a. introns
b. genes
c. ribosomes
d. exons
Ans: b. genes
You might also like to view...
Which of the following organisms has a cell wall?
A. Entamoeba histolytica B. Candida albicans C. Trypanosoma cruzi D. Enterobius vermicularis
Four of the five choices listed below are related by
their description of enzyme properties. Select the exception. a. specificity b. active sites c. activation energy d. substrate e. catalyst
Which of the following is NOT an adaptation of plants to life on land?
A. vascular system (in most plants) to move water internally B. waxy cuticle on leaves to prevent drying out C. waxy cuticle on roots to prevent drying out D. protection of the embryo from drying out
A segment of DNA that specifies a sequence of amino acids in a polypeptide is called a(n) ____________.
A. codon B. intron C. messenger D. gene E. enzyme