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
Eddi Din [679]
3 years ago
7

What are the mechanisms by which aneuploidy and polyploidy are caused? What are the mechanisms by which aneuploidy and polyploid

y are caused? The principal cause of aneuploidy is chromosome nondisjunction during mitosis or meiosis. Polyploidy in nature can result either from the duplication of euploid chromosome sets from a single species or from the combining of chromosome sets from different species. The principal cause of aneuploidy is paternal chromosome nondisjunction during meiosis. Polyploidy in nature results from the combining of chromosome sets from different species. The principal cause of aneuploidy is chromosome nondisjunction during mitosis. Polyploidy in nature can result from the deletion of one chromosome set during meiosis or during the first mitotic division. The principal cause of aneuploidy is maternal chromosome nondisjunction during meiosis. Polyploidy in nature results from the deletion of one chromosome set in somatic cells.
Biology
1 answer:
sleet_krkn [62]3 years ago
5 0

The correct answer is:

The principal cause of aneuploidy is chromosome nondisjunction during mitosis or meiosis. Polyploidy in nature can result either from the duplication of euploid chromosome sets from a single species or from the combining of chromosome sets from different species.  

Aneuploidy is a phenomenon when there is the presence of an abnormal number of chromosomes in a cell (an extra or missing chromosome). Usually it appears as a result of improper cell division (chromosomes don’t separate) and it can cause many genetic disorders.

Polyploidy refers to a state when there are more than two sets of chromosomes (one from mother one from father). Triploid (three sets of chromosomes) and tetraploid (four sets of chromosomes) chromosomes are examples of polyploidy. This phenomenon is most common in plants.

You might be interested in
1.What do you think you'd like most about working as a forensic scientist? Why? What do you think you'd like least about working
xenn [34]
This is your own opinion. Write about what you would do as a forensic scientist and the good things about that job and vise versa for the least favorite.
6 0
3 years ago
Bacteria is not made up of cells.<br><br> True<br> False
ololo11 [35]
The answer to your question is false
4 0
3 years ago
You cross purple-flowered and white-flowered pea plants, and all offspring are purple. how come? select one:
Vaselesa [24]
To solve this problem on genetic dominance, we will need a punnet square.

Let's let P represent purple-flowered and p represent white-flowered.

We have one purple flowered plant with the alleles PP, and we have one white flowered plant with the alleles pp. Using a punnet square, we can determine the alleles of the offspring.

       <u>P</u>     <u>P</u>
p|    Pp   Pp

p |   Pp   Pp

As we can tell from our punnet square, all of our offspring will have purple flowers. This is because the purple-flower allele is dominant and the white-flowered allele is recessive.

Since each flower has a dominant and recessive allele, they are heterozygous.

Therefore, the solution to this problem is D.
3 0
3 years ago
Xenotransplantation is using nonhuman animal organs in transplantation. Many people are against this practice. What would be the
romanna [79]

Answer:

A. There are more people on transplantation lists than donor organs so xenotransplantation can save people’s lives

Explanation:

Xenotransplantation, ie using non human animal organs in transplantation, has following most crucial favouring argument

  • Patients needing transplanted organs are much higher than people willing & able to donate them. So, there is extreme excess demand, needed to be satisfied for saving people's lives.
6 0
2 years ago
Read 2 more answers
During which phase of the cell cycle does DNA replicate?
Tom [10]

Answer:

A. S phase of Interphase

Explanation:

I hope this helped :)

5 0
3 years ago
Read 2 more answers
Other questions:
  • A substance that enters into a chemical reaction is called a(n) _____. enzyme reactant catalyst product
    11·2 answers
  • When would you use a dissecting microscope
    12·1 answer
  • Alpha has a dominant strategy, but beta does not.
    9·1 answer
  • Which cell organelles are most closely associated with energy changes in a plant? 1. Mitochondria and Chromosomes 2. Chloroplast
    14·1 answer
  • Which volcanoes have a clearly layered structure? Select all that apply.A.cinder coneB.stratovolcanoC.shield volcano
    13·2 answers
  • Only animals have traits
    8·1 answer
  • Emotional memory ________.
    6·1 answer
  • What must be true for organisms to be considered the same species
    7·1 answer
  • Find the kinetic energy of an 8 kg object at 4 seconds.
    15·1 answer
  • Complete the table by placing an x in the columns to deacribe each gas. more than one term can be used to describe each gas
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!