Which of the following statements correctly describes the targeting of proteins to the mitochondrial matrix or the nucleus? A. Proteins targeted to the nucleus are unfolded while being inserted into the nucleus and are refolded within the nucleus. Proteins targeted to the mitochondrial matrix are completely folded into the cytoplasm and remain completed folded when they are transported into the mitochondrial matrix. B. Proteins targeted to the mitochondrial matrix are unfolded while being inserted into the mitochondria and are refolded within the matrix. Proteins targeted to the nucleus are completely folded into the cytoplasm before they are transported to the nucleus. C. Both mitochondrial matrix and nuclear proteins are folded only after they reach their destinations. D. Both mitochondrial matrix and nuclear proteins are co-translationally targeted to their destinations. E. None of these statements are correct.

Answers

Answer 1
Answer:

Answer:

B.

Explanation:

Answer 2
Answer:

Final Answer:

Proteins targeted to the mitochondrial matrix are unfolded during transport and refolded within the matrix, while proteins targeted to the nucleus are fully folded in the cytoplasm before nuclear transport. So, The correct statement is B.  

Explanation:

Proteins targeted to the mitochondrial matrix are unfolded while being inserted into the mitochondria and are refolded within the matrix. Proteins targeted to the nucleus are completely folded into the cytoplasm before they are transported to the nucleus.

- Proteins targeted to the mitochondrial matrix are indeed unfolded while being inserted into the mitochondria. This unfolding allows them to pass through the mitochondrial membranes. Once inside the mitochondrial matrix, they can be refolded into their functional conformation.

- Proteins targeted to the nucleus are typically completely folded into their functional conformation in the cytoplasm before they are transported to the nucleus. The nuclear pore complex allows folded proteins to pass through while excluding unfolded ones.

So, The correct statement is B.

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Describe how a lysogenic infection can change into a lytic infection.

Answers

Lysogenic Infection is a viral nucleic acid in inserted in the host DNA, and is copied with it, and is passed down into the daughter cells, which the Lytic Infection enters a bacterial cell, copies itself, and causes the cell to burst
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Animals, including humans, store glucose in theform of
cellulose.
glycogen.
wax.
lipids.

Answers

Answer:

Animals, including humans, store glucose in the form of  glycogen.(option 2)

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Final answer:

Animals, specifically humans, store glucose in the form of glycogen. Glycogen serves as an energy storage molecule which can be broken down into glucose when needed. Cellulose, wax, and lipids have different roles in the organism.

Explanation:

Animals, including humans, store glucose in the form of glycogen. Glycogen is a polysaccharide, or a complex carbohydrate, that our bodies use for energy storage. It is stored primarily in the liver and muscle cells. When our bodies need a quick boost of energy, glycogen is broken down into glucose molecules that can be utilized by the cells. It's unlike cellulose which is a structural component for plants, whereas wax and lipids play a different role in the organism.

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In eukaryotesdoes DNA replication proceed in one direction?

Answers

Yes, the DNA replication proceeds in one direction.

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Hemophilia is a sex-linked disorder that is caused by a defective gene on the X chromosome. What will be the pattern of inheritance of the offspring of a hemophiliac father?

Answers

Hemophilia is considered a sex-linked recessive disorder which means the disease does not occur if only one gene in a pair is abnormal.

Inheritance pattern of the offspring of a father who has hemophilia and a mother who does not have hemophilia and is not a carrier:
- all sons will be born normal
- all daughters will be carriers

Inheritance pattern of the offspring of a father who has hemophilia and a mother who is a carrier:
- 25% chance of having a hemophiliac son
- 25% chance of having a son with no hemophilia
- 25% chance of having a daughter who is a carrier
- 25% chance of having a hemophiliac daughter