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lesya692 [45]
3 years ago
5

Which structures are common to both plant and animal cells? Check all that apply.

Biology
2 answers:
anygoal [31]3 years ago
7 0

Nucleus

Cell Membrane

Cytoplasm

Mitochondria

Slav-nsk [51]3 years ago
4 0
Nucleus, cell membrane, cytoplasm, and mitochondria are in both plant and animal cells. cell wall and chloroplast are in only plant cells
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why are the polio virus unable to reproduce if their DNA base sequence is different from the normal virus?
maks197457 [2]

Answer:

When the virus infects a cell, the RNA genome enters the cell and programs it to make new virus particles. These virus particles are released from the cell and go on to infect new cells. In humans, poliovirus is ingested, and replicates in cells of the gastrointestinal tract.Poliovirus, the prototypical picornavirus and causative agent of poliomyelitis, is a nonenveloped virus with a single-stranded RNA genome of positive polarity. The virion consists of an icosahedral protein shell, composed of four capsid proteins (VP1, VP2, VP3, and VP4), which encapsidates the RNA genome (1).RNA viruses generally have very high mutation rates compared to DNA viruses, because viral RNA polymerases lack the proofreading ability of DNA polymerases. The genetic diversity of RNA viruses is one reason why it is difficult to make effective vaccines against them.

5 0
2 years ago
A recessive allele is usually represented by
kogti [31]

Answer:

Recessive alleles are usually represented by lowercase letters and require two copies to be expressed

Explanation:

5 0
3 years ago
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Q. the global water is said to be in a steady state because-
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a) precipitation is balanced by evaporation

3 0
3 years ago
a researcher wishes to know whether there is a significant difference in the number of knee injuries reported among four sports.
boyakko [2]

Answer:

Chi-square analysis cannot be used to check for significant difference in the number of knee injuries among four sports.

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The chi-square analysis is a statistical procedure that is used to test association between measured variables or goodness of fits of a set of measured variables to expected outcomes.

<em>In the case of testing for significant difference, chi-square analysis cannot be used as testing for significant difference in two or more means requires using t-test, analysis of variance, or any other relevant statistical procedure.</em>

To compare number of knee injuries reported among four sports for significant difference, the most suitable statistical procedure would be analysis of variance.

<em />

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3 years ago
What carries the three unpaired bases that are collectively called the anticodon?
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3 years ago
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