What is the source of energy used to power the sodium-potassium pump?
What will be an ideal response?
breakdown of ATP
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Why was the nucleus removed from the egg cell used to create Dolly, the cloned sheep?
a. to remove the mitochondrial DNA of the egg donor b. to test whether the genetic contribution from a sperm cell alone could produce a lamb c. to create a cloned sheep in the absence of DNA d. since the genome for the clone was supplied by the diploid mammary cell, the presence of the egg cell DNA would result in triploidy e. to see whether egg cell DNA injected into a sperm cell could produce a lamb
A group of specialized cells of similar structure and function is a(n) ____
a. organ system b. cell cluster c. organ d. tissue e. organism
During the citric acid cycle:
A. fuel molecules are completely reduced. B. ATP is synthesized by substrate level phosphorylation. C. high-energy electrons are removed from NAD+ and FADH. D. ATP is synthesized by oxidative phosphorylation.
Overfishing can result in:
1.changes in genetic diversity of a fish population 2.changes in species diversity 3.changes in habitat 4.all of these