Answer:
<h3>As per the hints most applicable is a check that chromosome replication has been successfully completed this is because chromosome replication does not occur until after G1. Actually this checkpoint is G2.</h3>
Explanation:
During G2 phase cell undergoes rapid growth in size as well as protein synthesis takes place. During this process cell basically prepare itself for mitosis.
Explanation:
Earthquake waves produces two very important waves that useful in studying the composition of the earth.
These waves are P and S-waves.
- P-waves are primary longitudinal waves that propagates through any material medium.
- S-waves are secondary transverse waves that can only pass through solids but not fluids.
Using these waves we can know the composition of the earth.
Answer:
The statement supported by the description of the process of protein synthesis determined by DNA and its packaging and sorted by the Golgi apparatus is that various organelles within a cell interact with each other to carry out life processes (option D).
Explanation:
From the transcription of RNA from DNA to protein synthesis and its packaging and distribution, the participation of organelles is observed:
- <em>Cell nucleus</em><em>: contains the DNA and is where the transcription into mRNA occurs.
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- <em>Ribosomes</em><em>: where the mRNA is coupled to produce translation and protein synthesis.
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- <em>Rough endoplasmic reticulum</em><em>: contains ribosomes and participates in the process of membrane protein synthesis, also contributing to their conjugation, glycosylation or sulfonation.
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- <em>Golgi apparatus</em><em>: it is in charge of receiving synthesized proteins, packaging and distributing them to be sent to the extracellular space or other cells.
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In this way, the coordination of the functions of various organelles is useful and necessary to fulfill vital functions. The statement that varoius organelles within the cell interact with each other to carry out life processes is, therefore, correct.
<em>The options for this question are:</em>
<em> A. Organelles within a cell act independently of each other at all times
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<em> B. Some organelles are more important than other organelles within a cell.
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<em> C. Only up to three organelles may interact with each other at any given moment in time.
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<em> D. </em><u><em>Various organelles within a cell interact with each other to carry out life processes.</em></u>
Heterotrophic bacteria can't create their own food,but it can obtain energy from carbohydrates and other organic materials
Answer: d. Extracellular matrix was discovered more than 20 years ago.
Explanation:
According to biological sciences, the extracellular matrix is a matrix that consists of three dimensional network of extracellular macromolecules such as enzymes, collagen and glycoproteins which provide structural and biological support for surrounding cells as well.
It is found that it is discovered over 20 years ago in the matrix formed in the mouse EHS sarcoma. Therefore, correct answer is (d).
