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
IrinaK [193]
3 years ago
9

David shows delayed intellectual development and has flattened facial features. The doctors explain that this genetic disorder i

s a result of extra genetic material in the 21st chromosome. Which disease is David suffering from?
Biology
2 answers:
Marysya12 [62]3 years ago
7 0
David is likely suffering from Down Syndrome.
charle [14.2K]3 years ago
6 0

Answer:

Down's syndrome

Explanation:

Down's syndrome is caused by trisomy of chromosome 21. Trisomy refers to the presence of three copies of one chromosome in the genome. Since David has extra genetic material in chromosome 21, he is suffering from Down's syndrome.

Down's syndrome would affect the mental development and learning process of David. He is likely to have a broad skull with a small mouth.

You might be interested in
You discover a new sunflower that has blue flowers instead of yellow. When you cross this blue variety with a common yellow vari
Firlakuza [10]

Answer:

The correct answer is: B) codominance.

Explanation:

<u>Codominance is a type of inheritance pattern that describes the relationship of two variations of the same gene</u>: this means that in an individual, its two alleles manifest in the phenotype.

If a sunflower has both blue AND yellow speckles, it means that the two possible alleles are in a relationship, which makes these alleles CODOMINANT.

7 0
4 years ago
Which hormone works directly in the intestine to increase plasma calcium levels?
konstantin123 [22]
Parathyroid hormone.
8 0
3 years ago
What of the following are arthropods able to do after molting?
satela [25.4K]
An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and joint appendages. Arthropods are able to grow after molting. Arthropod growth is limited to molting, so growth happens in steps rather than continuously. 

The answer of the question is letter C which is to grow.
8 0
3 years ago
Read 2 more answers
What role do sex cells play in the well-being of a human?
AlladinOne [14]
It helps with population and reproduction.
5 0
3 years ago
Which two body systems allow humans to carry out the same life process as the ameba in the diagram
11111nata11111 [884]

Answer:

The best answer would be C.

Explanation:

8 0
3 years ago
Other questions:
  • Natural selection states that individuals
    8·1 answer
  • How many codons are needed for 3 amino acids?
    5·1 answer
  • Why are protein samples treated with sds before they are run on a gel? compare the banding pattern in the prepurification supern
    8·1 answer
  • Why is it important to conduct a controlled experiment? *
    6·2 answers
  • Suggest why carbohydrates such as bread should be wholegrain if possible.
    11·1 answer
  • QUICK PLS
    6·1 answer
  • How does the cooling rate of magma affect the<br> texture of igneous rock?
    12·1 answer
  • Albino individuals lack all pigmentation so that their hair and skin are white. This pedigree shows that albinism -
    10·1 answer
  • How is the energy in food used in our body​
    7·1 answer
  • Which of the following is not a potential problem of using more nuclear
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!