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Valentin [98]
3 years ago
12

During a laboratory exercise in class, Wei is asked to observe cells from different organisms. Her teacher asks her to list stru

ctures that are found in all cells. Which of the following could be found in all the cells that she studied?
a.
cell membrane, cytoplasm, DNA
b.
cell membrane, centrioles, DNA
c.
cell membrane, cell wall, DNA
d.
cell wall, cytoplasm, DNA
Biology
1 answer:
allochka39001 [22]3 years ago
4 0

Answer:

A

Explanation:

the answer is A because all of this organelles found in every organism

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Cells from advanced malignant tumors often have very abnormal chromosomes as well as an abnormal number of chromosomes. What mig
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Answer:

<u>Option- D: </u>Is the best choice to choose from the given options.

Now, let us explain the term Cell cycle in a more comprehensive way.

<u>As the cell cycle is controlled at three checkpoints.</u>

  • The integrity of the DNA is assessed at the G₁ checkpoint.
  • Proper chromosome duplication is assessed at the G₂ checkpoint.
  • Attachment of each kinetochore to a spindle fiber is assessed at the M checkpoint.

Explanation:

The cell cycle is controlled by three internal checkpoints that evaluate the condition of the genetic information.

  1. <u>The G₁ Checkpoint</u>:This stage determines whether all conditions are favorable for cell division to proceed. The cell can halt the cycle and attempt to remedy the problematic condition, or the cell can advance into G₀ (inactive) phase and await further signals when conditions improve.
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  3. <u>The M Checkpoint:</u>It occurs near the end of the meta-phase stage of mitosis. it determines whether all the sister chromatids are correctly attached to the spindle micro-tubules
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List examples of carbohydrates, lipids, proteins, and nucleic acids and name the function of each
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Macromolecules are large molecules within your body that serve essential physiological functions<span>. Encompassing </span>carbohydrates<span>, </span>proteins, lipids and nucleic acids<span>, macromolecules exhibit a number of similarities.

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Answer: The genotype ratio is 2Ff : 2ff

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See the punnett square attached for more information

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