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Harlamova29_29 [7]
4 years ago
8

There are two main types of chromosomal disorders, those that take place on the 21st pair of chromosomes and those that ________

______.
Biology
1 answer:
vampirchik [111]4 years ago
7 0

Down syndrome and Alzheimer's disease.

Down syndrome is a chromosomal disorder which is caused by the presence of extra copy of chromosome  21. Therefore also called as Trisomy 21.

Alzheimer's disease is a most common form of dementia(reduction in brain functioning). It is caused by mutation in single gene APP (Amyloid Precursor Protein) present on chromosomer 21.

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PBR322, where pBR stands for ................​
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Answer:

Hello There!!

Explanation:

Here is your answer:-

The p stands for plasmid,BR for Bolivar and Rodriguez.

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3 0
3 years ago
Give three examples of substances that are considered to be insulators.
Effectus [21]
Glass plastic and rubber
5 0
3 years ago
What are the 2 ways that you can do to enhance the<br> resolvingpower on the microscope?
satela [25.4K]

Answer:

Explanation:

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Using a lens that has a higher aperture.

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6 0
3 years ago
If you were planting a vegetable garden, what should you consider for the time of planting?
zvonat [6]

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7 0
3 years ago
One advantage of genetic engineering over selective breeding is what?
Levart [38]

Answer:

B

Explanation:

5 0
3 years ago
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