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LuckyWell [14K]
4 years ago
12

Please help!!!!!!!!!!!!!!!!!

Biology
1 answer:
Anton [14]4 years ago
4 0

the answer is B. u r welcome

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In a prokaryotic cell most ribosomes are A in the nucleus
algol13

Answer:

the answer is aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Explanation:

5 0
3 years ago
Si un RNA mensajero (mRNA) esta formado por 700 nucleótidos, ¿puede ser posible que
alexgriva [62]

Answer:

Si, esto es posible ya que para llegar a su forma madura el ARN mensajero sufre un procesamiento conocido como empalme alternativo donde su longitud se reduce drásticamente mediante la eliminación de regiones no codificantes (intrones) presentes en el trascripto primario

Explanation:

En células eucariotas, la transcripción refiere al proceso donde un gen es usado como templado para generar un ARN mensajero (ARNm) inmaduro conocido como pre-ARNm, el cual contiene regiones cortas codificantes (exones) y regiones largas no codificantes (intrones). Durante el proceso de empalme alternativo, también conocido como <em>splicing</em> alternativo, este pre-ARNm sufre un procesamiento mediante el cual los intrones son eliminados y los exones son retenidos y empalmados, con lo cual el ARNm maduro final reduce drásticamente su longitud original. En el caso arriba descripto, una proteína con 70 aminoácidos resultaría de la traducción de un ARNm maduro que posee 210 bases nucloetídicas, ya que cada triplete de nucleótidos o 'codón' corresponde a un sólo aminoácido agregado a la cadena polipeptídica durante la síntesis proteica en los ribosomas.

7 0
3 years ago
People with sickle cell anemia have one incorrect amino acid in their beta chain. The first seven amino acids in the beta chain
denis-greek [22]

Answer: Valine

Explanation:

hemoglobin A (normal) is HbA, while hemoglobin S (present in people with sickle cell anemia) is HbS

A sequence of 146 amino acids is present in the Hemoglobin.

The first 6 amino acids in HbA are: valine, histidine, leucine, threonine, proline, and glutamic acid.

The first six amino acids in HbS is:

valine, histidine, leucine, threonine, proline, and VALINE

In Hbs, the 6th amino acid (Glutamic acid) has already been mutated to Valine, a nonpolar, branched amino acid.

5 0
3 years ago
Why don't the spontaneous deleterious mutations that occur in an individual
Neko [114]

Answer:

Please see below  

Explanation:

The reason behind this is the phenomenon of natural selection. The deleterious mutations do not provide a survival advantage so they are selected against, which results in these type of mutations to not be passed on - rather, they eventually get eliminated from the population.  

           

6 0
4 years ago
Thomas records the masses of several rocks as 7.40 g, 7.85 g, 7.60 g, and 7.40 g. What is the mode of Thomas’s data set?
Pavlova-9 [17]
Basing on the data Thomas' were able to gathered, we could say that the mode of the data is 7.40 g. Mode of the data is being define the the response that has the highest number of tallied result. It must have the most number of result in order for it to be the mode.
6 0
3 years ago
Read 2 more answers
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