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3 years ago

Which one by itself does not possess the ability to synthesize its own proteins?

Biology

2 answers:

Ksenya-84 [330]3 years ago

8 0

Answer:

A virus

Explanation:

A virus requires a host cell to implant proteins into so that the host cell can create new virus cells. The virus essentially hijacks the cell.

All other listed cells can create new copies of their own proteins.

Cheers.

ivann1987 [24]3 years ago

7 0

A virus

When a virus infects a bacterial cell, often new viruses are assembled and released when the host bacterial cell is lysed. If these new viruses go on to infect new bacterial cells the host cells may not be lysed. What is the most plausible explanation for this? When a virus infects a bacterial cell, often new viruses are assembled and released when the host bacterial cell is lysed. If these new viruses go on to infect new bacterial cells the host cells may not be lysed. What is the most plausible explanation for this? The bacterial cell must be resistant to infection by the virus. The virus has entered the genome of the bacterial cell and is in the lysogenic stage. The virus carries genes that confer resistance to the host bacterial cell. The host bacterium couples the viral infection with transformation.

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Use the chart above to determine which substitution mutation has the potential to cause more damage? Highlight your answer. (2pt

icang [17]

Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence of the chart referred to in the question. However, what appears to be the case is that the three nitrogenous bases represent codons (and the missing chart is the codon chart). The mutation that has the potential to cause more damage will be the one that would change the amino acid formed from the codon change.

A. CAU to CAC: The codons CAU and CAC both form the amino acid histidine and thus is not expected to cause a major damage.

B. UGU to UGC: The codons UGU and UGC both form the amino acid cysteine and thus is not expected to cause a major damage.

C. UCU to UUU: <u>Codon UCU forms the amino acid serine while the codon UUU forms the amino acid phenylalanine</u>. Thus, this eventual change in the amino acid formed has the potential to cause a major damage and thus option C is the correct option.

NOTE that a codon is a sequence of three DNA/RNA nucleotides that corresponds to a single amino acid.

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