Answer:
By degrading, destroying, or displacing native habitats, invasive species compete with our native wildlife for food, water, shelter, and space, and thus threaten the health and well-being of our fish, wildlife, and plants.
Explanation:
Answer:
The correct answer will be option-A
Explanation:
DNA replication is the process of making replicas of the DNA from the parent DNA strands mediated by the replication enzymes and the ATP.
DNA polymerase is the enzyme which adds a nucleotide to the 3' end of the growing polypeptide chain thus synthesizing the DNA strand in 5' to 3' direction.DNA polymerase requires an RNA primer sequence and DNA polymerase I to add nucleotides.
Since in the given question, a new DNA polymerase III does not require RNA primer which helps in the synthesis of the Okazaki fragments or the lagging strand, therefore, the cell will also no longer require DNA polymerase I as DNA polymerase I fill the gaps between the Okazaki frangments.
Thus, option-A is the correct answer.
Answer:
(c) falls toward the end of M phase as a result of ubiquitylation and degradation.
Explanation:
Cyclins are the regulatory proteins of the cell cycle. The levels of cyclins change during the cell cycle. The function of cyclins is to activate cyclin-dependent kinases. Mitotic cyclins undergo specific and precisely timed proteolytic breakdown which in turn regulates CDK activity throughout the cell cycle. A cell can continue the process of mitosis when cyclins A and B are the first activated and then degraded.
The mitotic cyclins contain a destruction box near their amino terminus which in turn targets them for degradation. The destruction box recognizing protein (DBRP) recognizes this sequence and initiates the process of cyclin degradation. DBRP facilitates the interaction of mitotic cyclin and ubiquitin. Cyclin and activated ubiquitin are covalently joined by the enzyme ubiquitin ligase followed by binding of several more ubiquitin molecules.
This process of binding of ubiquitin to the mitotic cyclins is called ubiquitylation and serves to signal a proteolytic enzyme complex, or proteasome, to degrade cyclin.
Answer:
The movement of molecules from an area of higher concentration to an area of lower concentration is called diffusion
In osmosis, water always moves towards the hypertonic
solution with the greater Solute concentration.
Explanation:
<span>D. More individuals are born than can live on available resources.hope this helps!
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