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
alekssr [168]
2 years ago
8

Humans have 23 pairs of chromosome in every body cell. Even one extra chromosome causes death or serious disorders. For example,

an extra copy of chromosome 21 causes Down syndrome. Which of the following are affected in a human being with an extra chromosome? Choose the 3 items that apply.
Biology
1 answer:
tamaranim1 [39]2 years ago
3 0

Explanation:

In the majority of cases, the extra copy of chromosome 21 comes from the mother in the egg.

In a small percentage (less than 5%) of cases, the extra copy of chromosome 21 comes from the father through the sperm.

In the remaining cases, the error occurs after fertilization, as the embryo grows.

You might be interested in
Describe the 3 phases that are part of the cell cycle
Daniel [21]
The 3 phases that are part of the cell cycle would be

Interphase
Mitotic phase
Cytokinesis.
7 0
3 years ago
Kynndal had just turned two years old. She was a Daddy's girl who loved to help her Dad wash his motorcycle. She could often be
bazaltina [42]

The steps of fracture repair include:

  • Hematoma formation.
  • Fibrocartilage Callus Formation.
  • Bony Callus Formation.
  • Bone remodeling.

<h3>What is a fracture?</h3>

A fracture is a complete or partial break in a bone. The causes of bone fractures include trauma, overuse, and diseases that weaken bones.

In this case, Kyndall was lucky because the fracture occurred about 3 inches below the epiphyseal plate as this means the fracture does not break through the bone at the growth plate.

An improperly treated growth plate fracture could result in a fractured bone.

Lastly, the type of fracture is a nondisplaced fracture is one in which the bone cracks or breaks but retains its proper alignment.

Learn more about fracture on:

brainly.com/question/4261308

#SPJ1

3 0
2 years ago
Villi are tiny finger-like projections present in the inner wall of the small intestine. They help in the movement of partially
Eva8 [605]
They Increase the surface area available for the absorption of nutrients

6 0
3 years ago
Read 2 more answers
The mitral valve is in between which two chambers of the heart?
d1i1m1o1n [39]
Lit is located between the left ventricle and left atrium.

Left atrium is known to be one of the four chambers of heart that receives oxygenated blood from the right and left pulmonary veins. This blood is pumps to the left ventricle through the mitral valve. However, left ventricle is responsible for pushing oxygenated blood through the aorta to the rest of the body.


3 0
3 years ago
Which phrase is not an example of intercellular communication?
Dmitry [639]

Answer:

1.

Explanation:

A signal from one gland to another would not be intercellular, as "inter" means inside. This means intercellular would stand for "Inside the Cell"

8 0
3 years ago
Other questions:
  • Explain how both science and technology must have been involved in the development of leg prosthesis
    12·1 answer
  • What relationship exists between trophic levels and a food chain
    7·2 answers
  • During what processes would your body use condensation reaction ?
    8·1 answer
  • In general, locomotion on land will require more energy than locomotion in water. By integrating what you learned about animal f
    9·2 answers
  • An elderly female patient complains that her skin feels dry and itchy. The nurse would advise her to:
    10·1 answer
  • You can also produce your seeds to plant​
    11·1 answer
  • Which of the following is true about victory gardens?
    12·1 answer
  • Help please, 30 points.
    11·2 answers
  • Which organism has a central brain
    6·1 answer
  • Question 7 of 10
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!