In ruminants, cellulose digestion occurs in the
A. omasum.
B. rumen.
C. reticulum.
D. cecum.
E. rumen and reticulum.
E. rumen and reticulum.
You might also like to view...
Which of the following do I need to amplify the DNA for gene X and not for gene Y?
a. Some prior knowledge of the sequence of gene X so appropriate primers can be designed. b. a heat-stable DNA polymerase c. restriction endonucleases that cut gene X and not gene Y d. plasmid vectors that have multiple antibiotic resistance genes. e. A cDNA library and access to probes for gene X
Stabilizing selection tends to _____ (select all that apply)
a. eliminate extreme forms of a trait b. favor extreme forms of a trait c. eliminate intermediate forms of a trait d. favor intermediate forms of a trait
Analysis of the 1918 and 2009 flu epidemics reveals that the most likely scenario was that ________
A) the virus causing these outbreaks were derived from a single strain within which significant mutations changed the protein hemagglutinin B) these viruses switched from using RNA to using DNA C) the virus ultimately arose in birds, jumped to pigs, and then was able to switch to humans D) strong selection produces particularly virulent flu strains with predictable periodicity
Sickle cell anemia and cystic fibrosis are examples of homozygote advantage
_________________ Indicate whether the statement is true or false.