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
MA_775_DIABLO [31]
3 years ago
8

Down syndrome occurs when an individual has an extra copy of chromosome 21. This

Biology
1 answer:
Digiron [165]3 years ago
6 0

Answer:

C. A mutation

Explanation:

Down syndrome is a genetic disorder in which there is a partial or full extra chromosome in a person. Genetic disorders are caused by some sort of mutation or combination of mutations.

You might be interested in
A person diagnosed with exocrine pancreatic insufficiency (epi) does not have the digestive enzymes that are needed to adequatel
Leona [35]
Exocrine pancreatic insufficiency is basically a condition wherein the human body is incapable of digesting food due to lack of digestive enzymes produced by the pancreas. This is found in humans affected with cystic fibrosis and Shwachman- Diamond Syndrome and is also common among dogs. The consequences or side effects of this medical condition are the following:
a) frequent diarrhea
b) gassy stomach and bloating
c)stomach pain
d) greasy and foul smelling stools
e)weight loss

5 0
3 years ago
12. As a result of photosynthesis, what is produced *
Sloan [31]

Answer:

As a result of photosynthesis oxygen and sugar

7 0
3 years ago
How many laws in biology ?????????/
Komok [63]

Answer:

Three Laws of Biology. “Social rules can be broken, but the laws of nature can't.”

A biological rule or biological law is a generalized law, principle, or rule of thumb formulated to describe patterns observed in living organisms. Many of these regularities of ecology and biogeography are named after the biologists who first described them.

3 0
3 years ago
Read 2 more answers
What event happens first in the development of new organisms?
Rom4ik [11]
Well a<span> sperm fertilizes an egg to form a zygote.</span>
7 0
3 years ago
How many electrons are in the nucleus of an atom with an atomic number of
VLD [36.1K]

None, Electrons are not in the nucleus

<em>They</em><em> </em><em>are</em><em> </em><em>pres</em><em>ent</em><em> </em><em>in</em><em> </em><em>orbi</em><em>ts</em><em> </em><em>or</em><em> </em><em>ene</em><em>rgy</em><em> </em><em>shells</em><em>.</em><em> </em>

6 0
3 years ago
Read 2 more answers
Other questions:
  • Where did most of the chemical elements that make up our bodies come from?
    9·1 answer
  • It is best to say that the protection to properties offered by sea walls along coasts _______.
    11·2 answers
  • Ames adds some magnetic marbles to a glass jar full of ordinary marbles, and then shakes up the jar.
    14·1 answer
  • Which of the following is NOT a function of the hypothalamus?
    7·1 answer
  • Which is inherited as an autosomal recessive disorder?which individuals are inconclusive
    12·1 answer
  • Characteristic of schinephyta<br>​
    6·1 answer
  • The presence of calcium in the sarcoplasm is directly responsible for __________. Multiple choice 1 decreasing the length of the
    15·1 answer
  • 5. The air we breathe is mainly a mixture of nitrogen gas, oxygen gas, and carbon dioxide. What would
    12·1 answer
  • How can scientists Maximize the production and efficiency of micro algae ?
    14·1 answer
  • Your ability to process language in the left hemisphere of the brain and handle spatial thinking in the right hemisphere of the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!