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Anuta_ua [19.1K]
3 years ago
14

Which of the following statements is/are true of long noncoding RNAs? Choose one or more: a. They can trigger the activity of hi

stone acetyltransferases. b. They can silence genes by promoting the formation of euchromatin. c. They are involved in X chromosome inactivation. d. They can regulate the translation and stability of mRNAs.
Biology
1 answer:
Alinara [238K]3 years ago
8 0

Answer: Options A, B, C and D are correct.

Explanation: They can trigger the activity of histone acetyltransferases.

These RNAs functions by binding to histone-modifying complexes, to DNA binding proteins (including transcription factors), and even to RNA polymerase II.

They can silence genes by promoting the formation of euchromatin by arranging hetero- or euchromatic regions into close proximity may stabilize these domains or it may control the spreading of post-translational modifications (PTMs) to nearest chromatin.

They are actively involved in X chromosome inactivation.

They can regulate the translation and stability of mRNAs.

In Eukaryotic cells RNA transcription is a closely regulated process. Transcription of a lncRNA may regulate the transcription of nearby mRNA genes, either positively (maintaining active chromatin structure) or negatively (for example, colliding polymerases). In these cases, the RNA product may have no importance at all, or it could have an additional function.

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Los autosomas son aquellos cromosomas que se caracterizan por
bearhunter [10]

Answer:

Los autosomas o cromosomas autosómicos han sido ordenados de acuerdo a la morfología que poseen. ... Cada par de cromosomas son homólogos, es decir, contienen genes idénticos, con la misma ubicación a lo largo de cada cromosoma (locus). Ambos codifican para las mismas características genéticas.

Un autosoma es cualquier de los cromosomas, excepto los cromosomas sexuales. Los humanos tienen 22 pares de autosomas y un par de cromosomas sexuales (el par número 23, formado en las mujeres por dos cromosomas X y, en los hombres, un cromosoma X y un cromosoma Y).

3 0
3 years ago
A circle with a diameter of 16cm​
jeka94

Explanation:

radius is 8 because radius is half of a diameter

6 0
3 years ago
Natural selection relies on genetic variation. In any population of beetles, there are alleles for brown or green color. What ha
Savatey [412]

The correct order for natural selection can be summarized as:

1. Inherited variation: Individuals among the population exhibit inherited variation such as body color, body size, hair colors, voice properties, et cetera.

For example, the population of beetles: an equal number of green and brown beetles.

2. Competition: Organisms face the struggle for their survival.

For example, Natural habitat is in trees. Green leaves hide green beetles.  

The brown beetles are noticed by birds in the area.

Birds eat brown beetles.

3. Selection: It leads to differential reproduction, that is, the organisms with adaptive traits tend to survive and reproduce more.

For example, green beetles reproduce in greater number than brown beetles.

4. Adaptation: The organisms with survival traits tend to survive more and pass their traits to the future generation.

For example, more green beetles survive than brown beetles.

5. Evolution: The change in allele frequency of the population takes place.

For example, beetle population changes from brown and green to mostly green beetles.

Thus, the correct order would be:

1. The population of beetles: an equal number of green and brown beetles.

2. Natural habitat is in trees. Green leaves hide green beetles.  

3. The brown beetles are noticed by birds in the area.

4. Birds eat brown beetles.

5. Green beetles reproduce in greater number than brown beetles.

6. More green beetles survive than brown beetles.

7. Beetle population changes from brown and green to mostly green beetles

8 0
3 years ago
do you think the corpse flower’s smell meets the definition of an adaptatation as stated in the video?
Bas_tet [7]

Answer:

I don't know srry this is hard lol

3 0
3 years ago
Which of the following is not a way in which humans rely on prokaryotes?
Sladkaya [172]
Since there are no written choices, I could guess that prokaryotes are not reliable when it comes to diseases and other forms of ill-causing behavior of these microorganisms.

Scientists rely on prokaryotes to examine their structure and functions in order to come up with a good medicine. Some rely on prokaryotes to do the natural processes of decomposing and recycling matter throughout the earth's spheres.  
7 0
4 years ago
Read 2 more answers
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