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
Dmitry [639]
3 years ago
7

Down syndrome is a genetic disorder that is also called trisomy 21. A person with Down Syndrome has an extra copy of chromosome

21. Which best describes the genetic mutation that results in Down syndrome.
Nondisjunction during meiosis, resulting in uneven distribution of chromosomes
Complete duplication of chromosomes during polyploidy
Translocation during genetic replication, creating nonhomologous chromosomes
Crossing over during meiosis, leading to an exchange of genetic information
Biology
2 answers:
pochemuha3 years ago
4 0

Down syndrome is  caused by the nondisjuction of the chromosome 21.

Due to the vulgarism checker, the answer can not be posted on this text editor so see attachment for more details

Learn more: brainly.com/question/9782041

Download docx
andrew-mc [135]3 years ago
4 0

Answer:

A

Explanation:

Nondisjunction during meiosis, resulting in uneven distribution of chromosomes

You might be interested in
What is salivary gland? tell its functions.
katen-ka-za [31]

Answer:

Parotid glands are the largest salivary gland. Each gland is approximately 6 cm long and 3-4 cm wide and can weigh up to 30 grams. They are located within each of our cheeks. In our oral cavity they are responsible for the secretion of about 20% of saliva. This saliva is known as serous i.e. more liquid and fluid. It helps in the first phase of the digestion of food, facilitate mastication "chewing". These glands secrete protein-rich fluid which is a suspension of alpha-amylase enzyme.

3 0
3 years ago
Read 2 more answers
VERY SIMPLE IM JUST NOT GOOD AT SCIENCE.
BARSIC [14]

Answer:

water

Explanation:

you should know this Katara, you are a WATER bender lol

6 0
3 years ago
One difference between a fundamental niche and a realized niches is that
xxTIMURxx [149]

Answer:

Explanation:

Fundamental niche is the entire set of conditions under which an animal (population, species) can survive and reproduce itself. Realized niche is the set of conditions actually used by given animal (pop, species), after interactions with other species (predation and especially competition) have been taken into account

8 0
4 years ago
What are the 4 primary functions of the respiratory system?
sleet_krkn [62]

Answer:

answer is vocalization

8 0
3 years ago
Solute X is added to water and makes the ph number go down solute X is an<br>​
Rudiy27

Answer:

Acid

Explanation:

Because water is neutral and has a pH level of 7, and anything below 7 on a pH scale is acidic, solute X is an acid because it lowered the pH level.

5 0
3 years ago
Other questions:
  • Both plant and animal cells contain -
    5·2 answers
  • The parts of the brain that decrease in volume as senescence begins are called:
    9·1 answer
  • Energy flows into an ecosystem in the form of heat and exits in the form of?
    10·1 answer
  • What materials are part of the three most important cycles in ecosystems
    14·1 answer
  • What does algae look like under a microscope?
    12·1 answer
  • 17. Which of the following statements are accurate?
    11·1 answer
  • Does a living thing evolve over time
    6·1 answer
  • NADP+ is an example of an electron carrier. Describe its function in photosynthesis.
    15·1 answer
  • as wind movsces over ocean water it produces both currents and _____________ that erode the coastline​
    13·1 answer
  • Heeeeeeeeeeeelp :) <br> thanks
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!