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Temka [501]
3 years ago
14

5. The transcribed portion of a gene spans about 250,000 base pairs of DNA. The protein made from this gene, with 1,480 amino ac

ids, is translated from an mRNA of about 6,500 bases. a. Why is the coding sequence of this gene so much larger than the mRNA from which the protein is translated?
Biology
1 answer:
Artemon [7]3 years ago
7 0

Answer:

The nature of genes made them be divided into exons, introns and different regulatory sequences

Explanation:

The amount of genetic information that is under a gene structure have different roles in order to be correctly read. When a mRNA is produced from a certain gene, some regions from the complete structure of a gene might not be transcribed into a mRNA, and therefore won't be expressed into a protein. One of the main reasons of the smaller size in number of base pairs is because some of those lost regions on the DNA structure are responsible to be regulatory sequences and so, those sequences are not related with the final structure the mRNA and subsequently the protein structure. Some of those regulatory regions are related with the speed of transcription, for instance.

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I believe the answer is The spindle fibers  

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3 0
3 years ago
Definitions
shusha [124]

Answer:

Explanation:

1. Organ

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5 0
3 years ago
Read 2 more answers
Scientists have observed that pythons have vestigial leg bones. They have also observed that snakes in general have more DNA seq
hichkok12 [17]
The answer is <span>They both suggest that snakes evolved from an ancestor with legs.

The second choice is not correct since we have no information about pythons and other snakes. We only have the relationship between geckos, snakes and legless eels. So, it is said that </span><span>snakes in general have more DNA sequences in common with four-legged geckos than they do with legless eels. This means that snakes are closer to geckos than the legless eels. We cannot conclude from this information which evolved from which, but we can say that </span><span>snakes evolved from an ancestor with legs.
In different case, if the snakes had more DNA sequence in common with legless eels, we would conclude that the snakes evolved from an ancestor without legs.</span>
4 0
4 years ago
Humans need _____ for cell membranes, but cannot produce them.
Rudiy27
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6 0
3 years ago
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Which of the following statements correctly state(s) the location or function of the cells in the epidermis and dermis? Select a
coldgirl [10]

Answer:

Keratinocytes are located in the stratum basale in the epidermis and the hair follicle of the dermis. This statement is correct.

Explanation:

Keratinocytes are in the stratum basale of the epidermis, which is the deepest layer of the epidermis; from this layer, they ascend to the stratum spinosum, then to the stratum granulosum, then to the stratum lucidum if the skin is thick like the one that is in our hands or soles, and lastly they end in the stratum corneum. While the keratinocytes move from one layer to the next one, they change their characteristics.

Keratinocytes are also in hair follicles, they are similar to the keratinocytes from the dermis, but have some differences, such as their reproduction capacity.

3 0
3 years ago
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