Glyceraldehyde-3-phosphate can do all of the following except
A. be converted to usable energy for the cell.
B. manufacture lipids.
C. produce trace elements required for plant growth (nitrogen, magnesium, phosphorus, etc.).
D. be converted to ribulose.
C. produce trace elements required for plant growth (nitrogen, magnesium, phosphorus, etc.).
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Tadpoles must undergo a major metamorphosis to become frogs
This change includes reabsorption of the tail, growth of limbs, calcification of the skeleton, increase in rhodopsin in the eye, development of lungs, change in hemoglobin structure, and reformation of the gut from the long gut of an herbivore to the short gut of a carnivore. Amazingly, all of these changes are induced by thyroxine. What is the most likely explanation for such a wide array of effects of thyroxine? A) There are many different forms of thyroxine, each specific to a different tissue. B) Different tissues have thyroxine receptors that activate different signal transduction pathways. C) Some tissues have membrane receptors for thyroxine, while other tissues have thyroxine receptors within the nucleus. D) Different releasing hormones release thyroxine to different tissues.
What are the primary regulator units that control endospore formation?
A) allosteric proteins B) antisense RNAs C) riboswitches D) sigma factors
In polar covalent bonds
1.one atom has a stronger attraction for the shared electron than the other. 2.both atoms share the electrons equally. 3.the bonds are the result of ions being formed. 4.the atomic mass is altered.
In summer squash, spherical-shaped fruit has been
shown to be dominant to elongated fruit. On one occasion two different spherical varieties were crossed and produced all disk-shaped fruits. When these hybrid disk-shaped fruits were crossed, they produced 75 disk-shaped fruits, 48 spherical fruits, and 9 elongated fruits. Explain these results. What will be an ideal response?