Vas happenin!
6. It’s pointing to the Cell wall. The cell wall protects the cell so A is correct
7. B is correct, prokaryotes don’t have a nucleus
8. A is correct plant cells only have a chloroplast
9. I would say D
10. I would say A
Hope this helps
-Zayn Malik
The given question in incomplete, the complete question is:
You are a brilliant student who has discovered a new genetic disease identified by the absence of a key enzyme involved in the Krebs cycle. You work diligently to discover that the missing enzyme is produced in the cytoplasm as a zymogen, but does not get to its correct location in the mitochondria. What is the problem?
Group of answer choices
the signal peptide on the N-terminus of the protein may be incorrect or missing
the functioning of the Krebs in the matrix
enzymes allow some reactions to occur but not others
dephosphorylation did not occur
Answer:
The correct answer is that on the N-terminus of the protein the signal peptide may be missing or incorrect.
Explanation:
The metabolic reactions of several enzymes that take place within the mitochondria are generated with the assistance of genes produced within the nucleus. The translation of these gene products takes place within the cytoplasm and is targeted towards the mitochondria.
In case, if a flaw is witnessed at the time of targeting towards the mitochondria, the protein would stay within the cytoplasm and will not move forward. Therefore, error in the signal peptide would be the correct option.
A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes.
Answer:
Oceanic crust is denser than continental crust.
Explanation:
The density difference arises because of <em>partial melting</em>.
When you partially melt a rock, the lighter minerals melt before the denser ones, so the rocks that form from the melt are less dense than before.
After each cycle of partial melting, the rocks become progressively less dense.
The continental crust is formed more cycles of partial melting than oceanic crusts. As a result, the density of continental crust (2.7 g/cm³) is less than that of oceanic crust (3.3 g/cm³).
Consequently, the denser oceanic crust is subducted below the continental crust at a convergent boundary.
The nucleus contains the dna