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
Inessa05 [86]
3 years ago
15

Down syndrome is a condition in which the individual

Biology
1 answer:
djverab [1.8K]3 years ago
4 0
Has one extra chromosome in each cell (i.e 47 instead of 4.6). This is caused by one of the cell divisions during the formation of sex cells. Basically, the 21st chromosome ends up with 3 chromatids instead of 2. This is also why down syndrome is called trisomy 21.
You might be interested in
PLEASE HELP!! I WILL RATE BRAINLIEST!!!! THIS IS FOR 25 POINTS
Yuri [45]
The coastline experiences tidal bulge twice a day. :3 Good luck!
6 0
3 years ago
The __________ is the main control center for the autonomic nervous system. A. forebrain B. thalamus C. hypothalamus D. cerebrum
nirvana33 [79]
The autonomic nervous system (ANS) is the part of the nervous system which is involuntary. It is composed of neurons that is responsible for impulsing the central nervous system to muscles and glands. The hypothalamus is the most important part and main control center of ANS. It is responsible for many homeostatic processes inside our body. Both the autonomic function and the endocrine function is regulated by the hypothalamus.
3 0
4 years ago
Read 2 more answers
A mutation occurs that leads to
ololo11 [35]

Answer:

The sickle-cell allele is widely known as a variant that causes red blood cells to be deformed into a sickle shape when deoxygenated in AS heterozygotes, in which A indicates the non-mutant form of the β-globin gene, and also provides resistance to malaria in AS heterozygotes.

Explanation:

I hope this helps:)

8 0
3 years ago
Which of the following is not one of the Earth's cycles?
evablogger [386]

Answer:D

Explanation:

7 0
3 years ago
Read 2 more answers
ANSWER FOR BRAINIEST PLEASE!!!!!!!!!!!!!!!!!!!! IM BEGGING YOU AND thank you!!!!! (07.05 LC)
Anastasy [175]

connection with nature I believe


6 0
3 years ago
Other questions:
  • In animal cells, is/are usually a one way path​
    12·1 answer
  • Please answer it's 10 points
    5·1 answer
  • What is the chemical name for the compound with the formula Na 2 s?(sodium(Na) has one valance electron and sulfur (s) has 7 val
    14·1 answer
  • Mrs. j. is a 63-year-old woman who has a history of hypertension, chronic heart failure, and sleep apnea. she has been smoking t
    5·1 answer
  • Which statements are true regarding blood pressure in older adults? Select all that apply?
    13·1 answer
  • Normally, when a neuron is not transmitting information and a slight negative charge is present on the inside of the cell membra
    14·1 answer
  • In a field of sunflowers, there are varying heights. A plant breeder is determined to breed out all of the extremely tall and ex
    13·1 answer
  • What causes an increase in the number and intensity of small earthquakes before an eruption?
    9·1 answer
  • Please answer quickly, timed test!!
    7·2 answers
  • The light reaction requires
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!