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
Afina-wow [57]
3 years ago
11

Down's Syndrome is also called Trisomy 21 because affected people have three copies of chromosome 21. How is this possible?

Biology
1 answer:
Whitepunk [10]3 years ago
7 0

Answer:

hope this helps

Explanation:

About 95 percent of the time, Down syndrome is caused by trisomy 21 — the person has three copies of chromosome 21, instead of the usual two copies, in all cells. This is caused by abnormal cell division during the development of the sperm cell or the egg cell.

You might be interested in
Can you please help me with this?
ruslelena [56]
The aquifer must be permeable and porous to allow the water to flow through.
5 0
2 years ago
Describe the way human impact has leads to increased levels of CO2 in the atmosphere .
Maru [420]
Deforestation
Factories that release carbon dioxide and other greenhouse gasses
Peat bog destruction
Burning fossil fuels
Power plants usagr
8 0
3 years ago
Question 5 of 25
slavikrds [6]
1:96 is the most likely ratio.
5 0
3 years ago
Read 2 more answers
Meat is not a good source of protein because it does not provide the body with all the essential amino acids.
tankabanditka [31]

Answer: False.

Meat is a good source of protein. There are nine essential amino acids which are required under special conditions like illness.

These are-  Histidine, Leucine, Isoleucine, Valine, Threonine, Methionine, Lysine, Phenylalanine and Tryptophan. They cannot be synthesized by the body and therefore need to be taken from external protein sources.

Since meat contains all the essential amino acids, therefore it is considered as a good source of protein. Hence, the given statement is false.

3 0
3 years ago
Read 2 more answers
When heat is introduced to matter, what happens to the matter at the molecular level?
SCORPION-xisa [38]

Answer:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.

Explanation:

7 0
3 years ago
Other questions:
  • What best describes the dna in two daughter bacteria cells
    7·1 answer
  • During which phase do symptoms of schizophrenia become readily apparent to others
    5·2 answers
  • A client is transferred from the postanesthesia care unit to the intensive care unit after a radical neck dissection. in what po
    11·1 answer
  • Which checkpoint requires a cell to be of adequate size in order to move to the next phase in the cell cycle? G1/S checkpoint G2
    9·2 answers
  • A human-centered worldview states that humans, as the owners of Earth, can treat resources as they see fit.
    7·1 answer
  • List three protozoan infections of the circulatory system that are transmitted by arthropods. Include the disease name, specific
    9·1 answer
  • What happens if I recycle my plastic consumption for a week?
    11·1 answer
  • What will be the consequences if w do not educate them?<br>​
    10·1 answer
  • The figure below shows a food chain that might exist in a meadow.
    6·1 answer
  • In an ocean ecosystem, which is necessary to begin a food web?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!