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sleet_krkn [62]
3 years ago
10

. You have constructed four different libraries: a genomic library made fromDNA isolated from human brain tissue, a genomic libr

ary made from DNAisolated from human muscle tissue, a human brain cDNA library, and a humanmuscle cDNA library.A) Which of these would have the greatest diversity of sequences?B) Would the sequences contained in each library be expected to overlapcompletely, partially, or not at all?
Biology
1 answer:
aksik [14]3 years ago
7 0

Answer:

A) Brain genomic library and muscle genomic library.

B) Brain genomic library and muscle genomic library - overlap completely.

Human brain cDNA library, and a human muscle cDNA library and other library is partially overlap.

Explanation:

A) The genomic library contains the whole genome content of the organism whereas cDNA library contains the coding genome of the organisms. Brain genomic library and muscle genomic library will constitute the all the genomic sequences of brain and muscle.  The cDNA library is prepared from the mRNA and the coding regions are present in this library.

B) The overlapping in the genome library might occur due to the common sequences present in the genome. Brain genomic library and muscle genomic library might completely overlap with each other as they have more sequence common among each other. All the other library may be partially overlap with each other as they have some common DNA sequences and neither library can have unique sequences.

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3.- Cuáles son los parámetros para la valoración de los efectos producidos por los impactos ambientales
notsponge [240]

Answer:

Los parámetros son: magnitud, extensión, persistencia, reversibilidad, recuperación, persistencia, sinergia, probabilidad de ocurrencia, relación causa y efecto

Explanation:

La evaluación de un impacto ambiental debe tener en cuenta los siguientes parámetros principales:

- Magnitud. La magnitud se refiere al hecho que un impacto ambiental puede afectar al ecosistema en diferentes niveles.  

- Extensión. Este término se refiere a la superficie (por ejemplo, en metros cuadrados) del ecosistema el cual ha sufrido el impacto.  

-Reversibilidad. La reversibilidad indica la probabilidad de que el ecosistema una vez que ha sufrido el impacto pueda regresar a su estado inicial.  

- Recuperación. La recuperación es el grado de restauración al que puede llegar el medioambiente una vez sufrido el impacto.

- Persistencia. La persistencia indica la duración (cuantificable en tiempo) del impacto ambiental.  

- Sinergia. La sinergia se refiere al hecho de que dos o más impactos ambientales poseen un efecto mayor sobre el ecosistema que el producido mediante varios impactos ambientales por separado.  

- Probabilidad de ocurrencia. La probabilidad de ocurrencia expresa la posibilidad de que un impacto ambiental se produzca en un ecosistema durante un determinado período de tiempo.  

- Relación causa y efecto. La relación causa y efecto clasifica a los impactos ambientales en directos (causados por el impacto) e indirectos (causados por las consecuencias derivadas del impacto).

6 0
2 years ago
Weathering can be either a chemical or a physical process. The action of water causes physical weathering of rock. Which example
Scilla [17]

Frost wedging is a type of physical weathering of rock.

Explanation:

Physical or mechanical weathering affects the rock structurally but does not change the chemical composition. Mechanical forces will rub, break or shatter the rock surfaces. Wedging, abrasion, exfoliation are different types of physical weathering.

Water is one of the main sources which alter the structure of the rocks physically.

Frost wedging occurring due to flow of freezing water over the rocks. This frozen water enters the rock through the cracks and crevices on the rock surface,  and will expand inside and makes the rocks to crack further and breaks it apart.

8 0
3 years ago
Where in the chloroplast do the light independent reactions occur?
deff fn [24]

Answer:

In photosynthesis it occurs on the thylakoid membranes.

Explanation:

It is where the light independent reaction occurs.

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