Which organism has the greatest proportion of protein-coding DNA in its genome?
A) E. coli
B) human
C) fruit fly
D) round worm
E) Arabidopsis (a plant)
A) E. coli
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In most human populations, lactase levels are highest soon after birth and drop off in middle-to-late childhood
a. True b. False Indicate whether the statement is true or false
Traits that have both inherited and environmental causes are termed
A) heritable. B) polygenic. C) multifactorial. D) familial.
Some viruses are said to be naked because
A. They have a bilipid membrane instead of the capsid layer B. They have no bilipid membrane C. They have no capsid proteins D. The do not have cell wall E. None of the above
Which enzymes from the pancreas function in the small intestine to digest proteins?
A. Amylases B. Lipases C. Trypsin and chymotrypsin D. Bile acids E. Disaccharidases