Galactosemia caused by a transferase deficiency is characterized by elevated levels of galactose, galactitol, and galactose 1‑phosphate. galactose and galactitol are precursors of galactose 1‑phosphate. transferase deficiency studies in animal models suggest that galactose 1‑phosphate is the toxic agent. which result from a galactosemia study in an animal model will implicate galactose 1‑phosphate as the toxic agent in a transferase deficiency? inhibition of udp‑glucose 4‑epimerase in affected animals prevents toxicity. affected animals given a lactase inhibitor do not experience toxicity. inhibition of galactose transporter in the intestinal cells prevents toxicity. affected animals given a galactokinase inhibitor do not experience toxicity. a galactose‑free diet eliminates toxicity in affected animals.

Affected animals given a galactokinase inhibitor do not experience toxicity.

Explanation:

Galactokinase: Catalyzes is the first and committed step of the Leloir pathway involving the conversion of galactose to glucose. It causes phosphorylation of α-D-galactose to galactose 1‑phosphate. Thus, inhibiting galactokinase wil greatly decrease the levels of galactose 1‑phosphate.

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.