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Marysya12 [62]
3 years ago
11

How do virus move in a living cell​

Biology
1 answer:
chubhunter [2.5K]3 years ago
4 0

Answer:

When the virus enters a host cell, a viral enzyme, reverse transcriptase, converts that single-stranded RNA into double-stranded DNA. This viral DNA then migrates to the nucleus of the host cell. Another viral enzyme, integrase, inserts the newly formed viral DNA into the host cell's genome.

Explanation:

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Which products are not results of efforts to preserve the environment? A) hybrid cars B) plastic shopping bags C) carton plates
Vedmedyk [2.9K]

Answer: B

Explanation: Plastic shopping bags don’t help the environment, meaning that its not an effort to help preserve the environment.

7 0
3 years ago
In which type of study do scientists assess the health status of a large, defined group of people?
Arlecino [84]
<span>epidemiological studies</span>
5 0
3 years ago
Which mutations is most likely to cause a phenotypic change?
melomori [17]

The question is incomplete. The complete question is as follows:

Which of the following mutations is most likely to cause a phenotypic change?

A) a duplication of all or most introns

B) a large inversion whose ends are each in intergenic regions

C) a nucleotide substitution in an exon coding for a transmembrane domain

D) a single nucleotide deletion in an exon coding for an active site

E) a frameshift mutation one codon away from the 3' end of the nontemplate strand

Answer: D) a single nucleotide deletion in an exon coding for an active site

Explanation:

Deletion or insertion of a single nucleotide in an axon coding for an active site is called frameshift mutation.

The sequence of codons is read during translation, in order to synthesize a amino acids chain and form a protein from the nucleotide sequence. Frameshift mutations occur when the usual codon sequence is broken by the deletion or addition of one or more nucleotides. For example, if only one nucleotide is removed from the axon sequence during the RNA splicing process, then there will be a disrupted reading frame for all codons before and after the mutation. This may result in several incorrect amino acids being introduced into the protein. Disruption in protein sequence will cause phenotypic change.

Hence, the correct option is D) a single nucleotide deletion in an exon coding for an active site .

5 0
4 years ago
Could the world more easily support a population of vegetarians or carnivores?
lesya [120]

Answer:

i would think vegitarians because we an eventually run out of meat but we can keep growing vegtables

Explanation:

5 0
3 years ago
A somatic cell of a ferret contains 40 chromosomes.How many will it have after mitosis?​
adell [148]

Answer:

The answer is it will have 40.

Explanation:

After mitosis the daughter cells have the same amount as the parent cell.

7 0
4 years ago
Read 2 more answers
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