In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by _____
A) hydrogen bonds
B) nonpolar covalent bonds
C) polar covalent bonds
D) ionic bonds
C
You might also like to view...
Nematodes and arthropods both _____
A) develop an anus from the blastopore (pore) formed in the gastrula stage B) are suspension feeders C) grow by shedding their exoskeleton D) are lophotrochozoans E) have ciliated larvae
Which of the following statements best describes the habitats of Acidovorax, Sphingobacterium, and Sphingomonas?
a. Habitats are limited to the upper respira-tory tract of various mammals. b. Habitats are unknown. c. Habitats are limited to the soil and water environment. d. Habitats are limited mostly to water sources.
Most evidence indicates that skin color is controlled by how many gene pairs?
A. One B. Two to three C. Three to four D. Five to seven E. More than twelve
You have cloned a eukaryotic gene, and inserted it into a bacterial system for expression. You discover that the gene product is much longer than should be observed based upon the insert you successfully cloned
What problems would result in a longer cloned sequence? How will you go about investigating your hypothesis? Would your answer change based upon the presence or absence of introns? Why or why not? What will be an ideal response?