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
Evgesh-ka [11]
3 years ago
6

A cell finishing mitosis has __________ dna molecules, while a cell finishing dna replication has __________ dna molecules.

Biology
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

A cell finishing mitosis has 46 dna molecules, while a cell finishing dna replication has 92 dna molecules.

Explanation:

Diploid cell initiates mitosis with 46 DNA molecules and 4C DNA content (each chromosome is formed by two DNA molecules joined by the centromere). With mitosis finished, daughter cells also have 46 DNA molecules, but a DNA content of 2C.

Already in DNA replication each DNA molecule will give rise to another molecule identical to it, so that at the end of replication the human cell will have 92 DNA molecules, and within that number, 46 chromosomes contain two DNA molecules, the sister chromatids. These cells remain diploid (2n), but with twice as much DNA.

aalyn [17]3 years ago
6 0
Has normal (2n) amount of DNA;
Has twice (4n) the normal amount of DNA
You might be interested in
Explain how a change in the environment can cause the disappearance of traits or possibly cause an extinction of a species.
aliya0001 [1]

Answer:

Changes in the environment may leave individuals less well adapted to compete successfully for resources such as food, water and mates. Sometimes an entire species may become unable to compete successfully and reproduce. These problems can lead to extinction.

8 0
3 years ago
After chromosomes are formed, during which phase of mitosis do the chromosomes attach to the spindle fibers by their centromeres
lorasvet [3.4K]
4.Metaphase
All of the chromosomes are aligned midway between the spindle poles. A spindle is a dynamic network of microtubules that attaches to and moves chromosomes during nuclear division. Microtubules attach each chromatid to one of the spindle poles, and its sister to the opposite pole.
3 0
3 years ago
Read 2 more answers
Which of the following statements represent evidence supporting the endosymbiotic theory? Check all that apply.
Tems11 [23]

Answer:

The statement that says " The mitochondrion contains a circular chromosome that has bacterial DNA sequences" is true among the all statement given above.  

Explanation:

The Endosymbiotic theory that is other wise known as the symbiogensis illustrates the occurrence of the eukaryotic cell from the prokaryotic cells. Mitochondria and plastids are the most studied example in support of this theory. This theory explains that the aforementioned organelles are formed as they are taken inside in one another by the prokaryotic cell. Some of the evidences in support of this theory are mentioned below:

  • Phylogenetic similarity between the mitochondria and chloroplast to the proteobacteria and cynobacteria respectively.  
  • Ability of these organelles to divide only through binary fission as the bacterial population.
  • The associated ribosomes are similar to the bacterial ribosomes.  
  • Presence of porins in these organelles similar the bacterial membrane.  

5 0
3 years ago
Cells: the basic units of life
vagabundo [1.1K]

Answer:

Yes. Indeed they are...(?)

4 0
3 years ago
Runoff from farmland into a river is an example of what???
Y_Kistochka [10]

Answer:

It would be a form of pollution due to the runoff of chemicals which harm the marine life while helping with the growth of algea more suitably known as

EUTROPHICATION

Explanation:

8 0
3 years ago
Other questions:
  • A problem of interest to health officials (and others) is to determine the effects of smoking during pregnancy on infant health.
    7·1 answer
  • Heterocysts A. are found in nitrogen-fixing cyanobacteria.B. are used to protect nitrogenase.C. produce catalase.D. generate oxy
    12·1 answer
  • Which list below shows a correct path of energy flow through a food chain?
    14·2 answers
  • celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar stalks left in a salt solution b
    14·1 answer
  • Old Norse stories tell of a famous Viking named Egil, who lived around 900 AD. His skull was greatly enlarged and misshapen, and
    10·2 answers
  • Blood glucose levels are regulated by the hormone?
    12·2 answers
  • Name 2 special properties of water that are caused by hydrogen bonding.
    7·1 answer
  • Who grouped humans with primates in the same genus?
    6·1 answer
  • 14. Which of the following consumers is a herbivore?
    10·2 answers
  • I have a question lol I can't sleep
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!