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mr_godi [17]
3 years ago
6

Viruses, although not considered to be alive, attack host cells and cause disease. The attack of a host cell is necessary for th

e virus to survive for all of the reasons listed EXCEPT one. That is A) they cannot synthesize proteins because they lack ribosomes and must use the ribosomes of their host cells to translate viral messenger RNA into new proteins. B) they cannot produce or store energy in the form of ATP and have to get their energy from the host cell. C) they parasitize the host cell for basic molecules like amino acids, nucleotides, and lipids. D) they lack DNA so they must use the DNA of the host cell. Elimin
Biology
2 answers:
sergeinik [125]3 years ago
4 0
Its D, because i had this problem on a test, and of course i figured out the answer the hard way... lol
Kay [80]3 years ago
4 0

The correct answer is (D) They lack DNA so they must use the DNA of the host cell.

Viruses have their own genetic material to replicate and they need not to use the genetic material for the their survival in host body. Growth and division is one of the important factors for the survival of the organism. The virus themselves have their genetic material RNA or DNA for replication. They just need a host body because they cannot synthesize protein. They cannot produce or store energy. They lack molecules like nucleotide and lipid.

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Why does dna rely on rna?Why can’t dna deliver the instructions to the ribosomes directly
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Answer:

Why does dna rely on rna?

Transcription is carried out by the DNA-dependent RNA polymerase that replicates the series of the DNA chain into RNA. To start transcribing the sequence, the RNA polymerase binds to the series of DNA called the promoter and divides the DNA strands. It then copies the sequence series into the messenger RNA copy until it hits the part of DNA named the Terminator, where it halts and detaches from the DNA. As with being DNA-dependent DNA polymerases, RNA polymerase II, this protein that transcribes most of these factors at the human genome, controls as part of the huge protein structure with multiple regulatory and accessory subunits.

Why can’t dna deliver the instructions to the ribosomes directly

Transcription begins at the nucleus, which is the mind of the cell. It contains DNA which include all the messages we want to create proteins. These messages are taken by those ribosomes outside the nucleus. DNA is also valuable to be run in the cell, it wants to be there as a kind of professional material. Then this cell gets another copy of it in the process called transcription.

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2 years ago
Anthony places a drop of water under a microscope and observed some small objects.He concludes that the small objects are cells.
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Anthony observed the objects moving in the water.

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Is Mycobacterium plei gram positive or gram negative or not either or?
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When gram staining is performed on the <em>M.phlei </em>, they take light purple color which indicates that it is a gram-positive bacteria and is related to Actinobacteria phylum of the gram-positive bacteria.

Thus, <em>M. phlei</em> is a gram-positive bacteria.

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The cuticle, cortex, and medulla are regions of the hair, can you describe how they are arranged?
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The cuticle is the hair's protective layer, the cortex forms the pigment of the hair, the health of the cortex depends on the cuticle protecting it while the medulla is the innermost of the hair.

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The cuticle is the hair outermost layer, the cortex is the middle structure for strength while medulla is the inner most.

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