Exposure of zebrafish nuclei to meiotic cytosol resulted in phosphorylation of NEP55 and L68 proteins by cyclin-dependent kinase 2. NEP55 is a protein of the inner nuclear membrane, and L68 is a protein of the nuclear lamina
What is the most likely role of phosphorylation of these proteins in the process of mitosis?
A) They enable the attachment of the spindle microtubules to kinetochore regions of the centromere.
B) They are involved in the disassembly and dispersal of the nucleolus.
C) They are involved in the disassembly of the nuclear envelope.
D) They assist in the movement of the centrosomes to opposite sides of the nucleus.
Answer: C
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Agricultural lands frequently require nutrient augmentation because _____
A) nitrogen-fixing bacteria are not as plentiful in agricultural soils because of the use of pesticides B) the nutrients that become the biomass of plants are not cycled back to the soil on lands where they are harvested C) land that is available for agriculture tends to be nutrient-poor D) grains raised for feeding livestock must be fortified, and thus require additional nutrients E) cultivation of agricultural land inhibits the decomposition of organic matter
Answer the question using the accompanying figure. The benthic province includes the intertidal zone, represented by
letter ____, and the abyssal zone, represented by letter ____.
a. G; H b. B; H c. E; H d. B; C e. E; F
How is salt extracted from the sea?
What will be an ideal response?
The use of pyruvate carboxylase to convert pyruvate into oxaloacetate is a step unique to gluconeogenesis compared to the Embden-Meyerhof pathway.
Answer the following statement true (T) or false (F)