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lbvjy [14]
2 years ago
9

the blood cells that contain a red pigment called hemoglobin for bringing oxygen to the cells of the body are the

Biology
1 answer:
nalin [4]2 years ago
7 0
The blood cells that contain a red pigment called hemoglobin for bringing oxygen to the cells of the body are red blood cells
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does the presence of introns exons in eukaroytic cells provide more potentia diversity in gene products than is possible in pork
Leona [35]

Answer: Yes. Splicing can be done in different ways to yield different mRNAs wich will create different proteins. Prokaryotes are not able to do this.

Explanation:

DNA (deoxyribonucleic acid) is a molecule that contains the genetic information for synthesizing amino acids that form proteins. To do this, DNA must first be transcribed into RNA (ribonucleic acid) and this is the molecule used for protein synthesis (translation). The newly transcribed RNA (called primary messenger RNA) from DNA results in a very long molecule and also has regions that do not code for anything, called introns, which are removed by a process called splicing. Exons are segments in the RNA that do code for amino acids and remain in the mature mRNA after splicing.

<u>Splicing is a process by which introns are cleaved from the primary messenger RNA and exons are joined to generate mature messenger RNA.</u> In addition, alternative splicing occurs which allows different mRNA isoforms and thus different proteins to be obtained from a primary mRNA transcript. This is because the exons will be joined or spliced in different ways, giving rise to different mature messenger RNA sequences. This process occurs mainly in eukaryotes, although it can also be observed in viruses. But it does not take place in Prokaryotes (Bacteria).

In summary, exons/introns can be spliced together in different ways to yield different mRNAs sequences. Each different mRNA sequence will code for a different protein.

6 0
2 years ago
Which structures are found in eukaryotic cells?
IRINA_888 [86]
Oh! Just did this in school!
Eukaryotic cells are more complicated than prokaryotic. Eukaryotic cells have DNA in their nucleus, they have more than one chromosome, lysosomes, preoxysomes, mitochondria, cytoskeleton, golgi apparatus
8 0
3 years ago
In a cross of two heterozygous parents, 25% of the offspring should have the recessive phenotype.
Degger [83]
True because if you were to do a punnet square, it would show 25% recessive 25% dominate and 75% hybrid 

7 0
3 years ago
After the centromeres separate during mitosis, the chromatids move toward opposite poles of the spindle and after cytokinesis be
Bond [772]
Hello there.

<span>Regulation of the cell cycle is dependent upon cyclins and cyclin-dependent kinases. The key(s) that allows a cell to progress beyond the restriction point is (are)

</span><span>c. cyclin A and Cdk2.
</span>
3 0
3 years ago
The age of the solar system is estimated by the dating of rocks.<br> True or false
horrorfan [7]
True
Because they break down what they are made of
8 0
3 years ago
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