Biology, 18.03.2021 01:50, lrasanaoaksandfurana
Switchgrassis used for ethanol production. The compositions of the switchgrass are 37% cellulose, 24% xylan, 3% galactan, 4% arabinan, 20% lignin, 7% extractives, and 5% ash(all on dry basis). The switchgrass is pretreated with dilute acid method before enzymatic hydrolysis and fermentation. The pretreatment hydrolyzes 10% hexosan (cellulose and galactan) and 90% pentosan (arabinan and xylan) into monomeric sugars. Approximately 30% of the hydrolyzed pentoses are decomposed to furfural. Assume there is no decomposition of the hydrolyzed hexoses. How much sugars (glucose, xylose, galactose, and arabinose, respectively) are produced when pretreating 1,000 kg (dry matter) switchgrass
Answers: 3
Biology, 21.06.2019 23:30, brook633
The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2
Answers: 2
Biology, 22.06.2019 07:50, kkstone
One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.
Answers: 3
Biology, 22.06.2019 08:30, Joshyy23
Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring
Answers: 1
Switchgrassis used for ethanol production. The compositions of the switchgrass are 37% cellulose, 24...
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