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
andreyandreev [35.5K]
4 years ago
10

Down syndrome is caused by the presence of an extra copy of chromosome 21. how would a karyotype identify a person with down syn

drome ?
a) ID physical characteristics of someone with the disease.

b) ID Chemical abnormalities in the blood

c) ID parents as being carriers Before they have children

d) ID presence of an extra copy of chromosome 21
Chemistry
1 answer:
slava [35]4 years ago
4 0
The answer is d or b good luck
You might be interested in
Which of the following is true about acids?
timama [110]
Acids give food a bitter taste due to the presence of hydroxonium ion and when it is dissolved in water to form an acidic solution, it most times can conduct electricity i.e tetraoxosulfate solution
6 0
3 years ago
The sum of two integers is -4. Can the two integers both be positive?
kaheart [24]

Answer: No.

Explanation: A negative integer can only be made with 2 negative integers or 1 positive and 1 negative integer.

3 0
3 years ago
Write a complete, balanced equation for the following reactions:
lys-0071 [83]

Answer:

Solution given:

c) Magnesium metal plus silver acetate (teachers note:

<u>Balanced</u><u> </u><u>chemical</u><u> </u><u>equation</u><u>:</u>

\boxed{\bold{\green{Mg+AgC_{2}H_{3}O_{2}\rightarrow MgC_{3}H_{3}O_{2}+Ag^{+}}}}

d) hydrobromic acid plus zinc metal (teachers note:

<u>Balanced chemical equation:</u>

\boxed{\bold{\green{2HBr+Zn \rightarrow Be_{2}+H_{2}}}}

6 0
3 years ago
_________ are elements of the same element that have a different _______________ due to a different number of _____________.
Andreas93 [3]

Answer: Isotopes

Explanation:

The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.

Hope this helps!

4 0
4 years ago
Question 7 (1 point
Anna35 [415]

Answer:

the elements to the right including hydrogen

Explanation:

as you know non-metal tend to gain eletrons

basically group 5, 6, and 7 are nonmetals

group 1, 2, and 3 are metals and group 4 are transitional metals so be careful with group 4

7 0
3 years ago
Read 2 more answers
Other questions:
  • Adding energy or increasing the speed of the particles at very low pressure in a solid would cause
    14·1 answer
  • People who live in hot, dry climates often rely on _________________________ for their drinking water
    14·1 answer
  • Which is one way that a short-term environmental change will most likely affect organisms within an ecosystem? A)It will lead to
    14·2 answers
  • What happens when the electron moves from the first energy level to the second energy level?
    9·1 answer
  • Which type of bond is present within a water molecule
    15·1 answer
  • Can non-metals be liquids or solids?
    14·1 answer
  • Which best defines the relationship between speed and velocity?
    15·2 answers
  • How many moles is 8.3 x 10^12 atoms or particles of Br2<br> urgent
    7·2 answers
  • What is the original mass of the iron wool?
    6·2 answers
  • The United States produces thousands of different kinds of inorganic chemicals. Inorganic chemicals, for the most part, do not c
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!