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VARVARA [1.3K]
3 years ago
7

Because plants do not have skeletons, what accounts for their rigidity?

Biology
1 answer:
Nadya [2.5K]3 years ago
8 0
<span>The cell walls of plants are very rigid. In addition, the turgor pressure of the water pressing against those cell walls keeps them firm. As water flows through the membranes of the cell walls, the difference in pressure allows these cells to stay in shape.</span>
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Cual es la diferencia entre un espermatozoide y una célula de nuestro pelo​
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Answer:

La principal diferencia que hay entre un espermatozoide y una célula de nuestro pelo es que el espermatozoide corresponde a una célula reproductiva haploide que contiene sólo la mitad del material genético del organismo mientras que las células en nuestro cabello tienen el material genético completo.

Explanation:

5 0
3 years ago
When a solid is hit hard, the force may break the solid. This is called .
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Which feature of earth is created at mid ocean ridges
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The correct answer is - underwater mountain ranges.

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4 0
4 years ago
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Name and describe one of the three conditions Dr. Natterson-Horowitz mentions that have been well-studies by veterinarians, who
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Capture myopathy is a heart condition in animals specifically in tamarins. Dr Natterson-Horowitz studied the condition and discovered that it is similar to cardiomyopathy which is a heart condition in humans. She also studies some conditions that are parallel to both humans and animals.<span />
8 0
3 years ago
Which of the following sequences shows a frameshift mutation compared to the wild-type mRNA sequence?
Butoxors [25]

Option C:

B. wild-type 5-AUGCAUACAUUGGAGUGA-3 mutant 5'-AUGCAUACAUCUGGAGUGA- 3' 

Explanation:

A frameshift mutation is a genetic mutation such that the triplet nature of gene expression by codons, the insertion or deletion occurs in such as way that it alters the complete sequence of 3 codon sets and can change the reading frame, resulting in a completely different translation from the original.

As it is pertinent to understanding that all genes are normally translated in sets of 3 codons, which typically describes and explain a unique amino acid sequence. Thus, if a frame shift mutation occurs, it can affect many amino acid sequences and finally the entire protein.  

If we look at option B:

wild-type 5-AUG   CAU  ACA  UUG  GAG  UGA-3  

mutant 5’-    AUG   CAU  ACA  UCU  GGA  GUG  A-3’  

An insertion of a base Uracil showed at the end of 3rd codon which affected and altered the whole sequence of codon triplets. This changed all next codons and finally all next amino acids will be altered.

8 0
3 years ago
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