1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
velikii [3]
3 years ago
9

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

ht explain the association between malignant tumors and chromosomal abnormalities?A) Chromosomally abnormal cells still have normal metabolismB) Cancer cells are no longer density dependentE) Transformation introduces new chromosomes into cellsD) Cell cycle checkpoints are not in place to stop cells with chromosome abnormalities.
Biology
1 answer:
patriot [66]3 years ago
5 0

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.
  2. <u>The G₂ Checkpoint:</u> The most important role of the G₂ checkpoint is to ensure that all of the chromosomes have been accurately replicated without mistakes or damage.
  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
You might be interested in
What are viable explanations for the consistent observation of a few black mice on the island?
PolarNik [594]

They undergone genetic mutation that influenced their fur color.

Mutations result either from accidents during the normal chemical transactions of DNA, often during replication, or from exposure to high-energy electromagnetic radiation (e.g., ultraviolet light or X-rays) or particle radiation or to highly reactive chemicals in the environment. Mutation can be of 4 types Germline mutations occur in gametes. Somatic mutations occur in other body cells. Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide. Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame. Factor that influenced  mutation are the size of the gene, its base composition, its position in the genome, and whether or not it is being actively transcribed influence its mutation rate.

To learn more about mutation ,here

brainly.com/question/13923224

#SPJ4

7 0
2 years ago
An object of the same mass has three different weights at diffrent times. Which statement is possible
Zepler [3.9K]

Answer:

So we want to know how can an object have three different weights at different times. So weight is Fg=m*g, where m is the mass of the objecct and g is the gravitational acceleration. On Earth, g=9.81 m/s^2, in space g is much less and on the moon g=1.625 m/s^2 So we see that the object changes its weight by moving it to space and on the Moon.

Explanation:

4 0
3 years ago
According to this article who collected information to research the honeybees
andreyandreev [35.5K]

Answer:

Cornell University

Explanation:

I did not know what article you refer to but I know that there is an article with this question.

6 0
3 years ago
Which of the following statements does NOT accurately describe difference between mitosis &amp; meiosis? A.mitosis is used to pr
yanalaym [24]

c), mitosis; meiosis ... Which of the following statements about human reproduction is true? ... b), Each cell undergoing mitosis divides into two complete new cells that are ... a), Sperm and ova are not identical to the parent cells that produced them. ... a), Mitosis produces cells that have a haploid number of chromosomes.

4 0
3 years ago
Which type of minerals do you need in lesser amounts?
slavikrds [6]

Answer:

Trace minerals are those minerals which we need in lesser amount for our body which includes iron, copper, zinc, cobalt, selenium etc.

hope it helps!

6 0
3 years ago
Other questions:
  • How does the destruction of forests contribute to levels of atmospheric carbon?
    13·1 answer
  • Alcoholic beverages
    14·1 answer
  • What happens when molten material travels along the underside of the crust?
    9·1 answer
  • What quadrant is the number –14 – 5 located on the complex plane?<br> I<br> II<br> III<br> IV
    15·1 answer
  • Which two statements about plastics are true? They are made from oil and natural gas. They are natural materials. They are good
    14·1 answer
  • Which of the following describes a negative feedback loop?
    9·1 answer
  • A dairy farmer wanted to increase the amount of milk produced by his cows. He
    8·1 answer
  • How is surface area to volume ratio linked to the structure of human lungs and blood vessels?
    6·1 answer
  • The potential source of land pollution in your locality​
    6·1 answer
  • Aldosterone stimulates the protein synthesis of ______ and ______. multiple choice question.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!