Which of the following is an essential role played by large intestine bacteria?
a. produce gas
b. absorb bilirubin
c. synthesize vitamin k and b-complex vitamins
d. synthesize vitamins c and d

Dna has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. one aspect of dna that allows it to accurately store genetic information is the base pairing from chargaff\'s first rule of the four nucleotide bases. if the c content of a dna molecule is 22%, what are the percentages of the remaining bases?

The mixture of sperm and fluids from the seminal vesicles, prostate gland, and cowper's glands is called

In sheep, the allele for belly fur (a) is dominant to the allele for no belly fur (a). a mother with the genotype aa and a father with the genotype aa produce an offspring.