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diamong [38]
3 years ago
5

At the end of prophase, spindle fibers form among the chromosomes, and the kinetochore of each chromatid becomes attached to whi

ch specific structure, formed by a spindle fiber?
Biology
1 answer:
gtnhenbr [62]3 years ago
3 0

Answer:

Chromosomal Microtubule

Explanation:

<em>Chromosomal microtubule are tiny hollow structure that appear tube-like under the microscope which are primarily made from cytoskeleton's proteins and beta tubulin. They are polar molecules formed by spindle fiber with fast growing positively charged end and slow-growing negative ends.</em>

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Cells can conduct many task, including which of the following​
julia-pushkina [17]

Answer option:

1. duplicate themselves

2. convert energy

3. selectively exchange materials

4. all of the above

Answer:

4. all of the above

Explanation:

Cells carry out many functions. They are able to replicate their DNA and divide into two identical daughter cells in order to proliferate.

They can convert glucose into cellular energy (ATP) through respiration in the mitochondria

They can exchange materials with the outside environment via the selectively permeable cell membrane, endocytosis and exocytosis and active transport via membrane proteins.

Therefore, all of the above is correct.

3 0
3 years ago
Which structure of a flower releases pollen? anther
Mariana [72]

Answer:

Anther

Explanation:

Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther.

Anther: The part of the stamen where pollen is produced.

Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma.

4 0
3 years ago
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De qué manera un cambio en la secuencia del gen que codifica para una de las cadenas de la hemoglobina puede afectar la función
krek1111 [17]

Answer:

Please put this question in English and I would then love to help you. Thanks.

3 0
3 years ago
Which of the following describes the correct stepwise assembly (in vitro) of the eukaryotic RNA polymerase II preinitiation comp
PilotLPTM [1.2K]

Answer: (TFIID) TBP-> TFIIB IIA--> TFIIF RNA POL II

Explanation:

Remember that in eukaryotic organisms, transcription and processing are coupled processes. There are 3 different types of Rna pol. In the case of RNA pol II transcribes genes that encode proteins (mRNA synthesis). Transcription factors are involved, for example: TFIID, TBPs, TAF (recognizes TATA promoter center, regulatory functions), TFIIA (stabilizes TBP union, antirepressant function), TFIIB (RNA Pol II starting point selection).

7 0
3 years ago
Name the types of fats found in foods?
olga55 [171]

Answer:

Saturated fats, trans fats, monounsaturated fats, and polyunsaturated fats.

Explanation:

6 0
2 years ago
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