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
lubasha [3.4K]
3 years ago
13

URGENT!! Describe nondisjunction and the effect it can have on a human.

Biology
2 answers:
Bad White [126]3 years ago
8 0

Meiosis is a type of cell division by which chromosome number is reduced to half. It occurs during gamete formation. However, during anaphase I, a pair of chromosome fails to separate or during anaphase II sister chromatids fail to separate during anaphase II of meiosis. Both the cases results into nondisjunction of chromosomes. Nondisjunction forms abnormal number of chromosomes in the gametes.  

Nondisjunction causes human disorders in autosomes from chromosomes 1-22. The examples are Down syndrome or trisomy 21, an extra copy of chromosome 21. People with Down syndrome have 47 chromosome instead 46.  

Vlada [557]3 years ago
6 0
Nondisjunction<span> in meiosis, occurs during anaphase. When one pair of homologous chromosomes fails to separate. This effects age development and genetic recombination for humans. </span>
You might be interested in
Why cloning is considered as unethical? <br>​
vredina [299]

Answer:

Because the risks associated with reproductive cloning in humans introduce a very high likelihood of loss of life, the process is considered unethical. There are other philosophical issues that also have been raised concerning the nature of reproduction and human identity that reproductive cloning might violate.

3 0
3 years ago
10. Which equation shows the conservation of matter? Explain why A or B
storchak [24]

Answer: A

Explanation: The elements in the compounds get rearranged. You can't change the amount of hydrogen, oxygen, or carbon the product contains

6 0
1 year ago
What is science? State five aspects of science? ​
Arlecino [84]

Answer:

Explanation:

Science is the study of the nature and behaviour of natural things and the knowledge that we obtain about them. A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.

Five key descriptors for the scientific method are: empirical, replicable, provisional, objective and systematic.

3 0
2 years ago
One of the products that a plant produces in photosynthesis
12345 [234]

Answer:

starch

Explanation:

In the presence of sunlight ,water,and oxygen the photosynthesis occurs .

As the by product of photosynthesis the starch or glucose(C6H12O6) is produce.

6 0
3 years ago
What arrow under the words the words Arctic Air indicates what?
katrin2010 [14]
Artic air is the answer to this
7 0
3 years ago
Other questions:
  • Which example is an organism?
    11·1 answer
  • Which sequence of fossils formation is the only one possible
    6·1 answer
  • What steps of the rock cycle involve heat
    12·1 answer
  • What is the benefit of using a graph? Select all that apply.
    6·2 answers
  • What do you think determines the gender of a human baby?
    6·1 answer
  • Voluntary control of skeletal muscles is provided by the
    7·1 answer
  • Which is a common characteristic of extrusive igneous rock?
    7·2 answers
  • Phosphorus in rivers can lakes sinks to the bottom and over thousands of years becomes ______ again.
    8·1 answer
  • Suggest me best subject for invertibrate for presentation​
    8·1 answer
  • Okay, no exp h e l l p
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!