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
Crank
3 years ago
11

In Alzheimer's disease, the brain damage is

Biology
1 answer:
JulijaS [17]3 years ago
6 0
A is the answer.....
You might be interested in
Which organic molecule would a long-distance runner most likely choose to eat before a race?
Over [174]
Biomolecules are organic compounds that are present as essential components of living things. There are four major biomolecules namely lipids, proteins, carbohydrates and nucleic acids. Proteins, lipids and glucose are usually used by organisms as energy sources as well as structural components among other functions in living organisms. Nucleic acids are important components that bring about heredity. In this case the appropriate molecule to be chosen by the long distance learner would be carbohydrate because it stores and may be used as a source of energy.
7 0
3 years ago
Help this is for a big test (so right answers only)(AP3X)
mash [69]
B and C are correct
7 0
2 years ago
Read 2 more answers
Which of the following best compares the structure of carbohydrates and nucleic acids?
hammer [34]
The answer youre looking for is A
6 0
3 years ago
Why was iodine able to diffuse across the membrane while starch was not?
Vikentia [17]
Starch cannot diffuse across the membrane because starch molecules are too large to fit through the pores in the dialysis tubing, whereas iodine is a smaller molecule and therefore can diffuse across.  
4 0
3 years ago
Read 2 more answers
Scientists seeking to determine which molecule is responsible for the transmission of characteristics from one generation to the
worty [1.4K]
A) DNA fulfils all three conditions:
<span>(1) copy itself precisely - in the process of replication, DNA copies itself and two molecules of DNA are formed. This process is very precise thanks to the great number of proteins involved in these process that prevents error occurring and proteins that can fix the error if it occurs.
(2) be stable but able to be changed - DNA is very stable molecule otherwise, it cannot be a genetic material. However, its chains can separate in a short length so the translational machinery can attach to it and the process of transcription can occur. Also, in crossing over, during meiosis, </span>the exchange of genetic material occurs and chromosomes change a bit.<span>
(3) be complex enough to determine the organism’s phenotype - it contains a number of genes responsible for different traits. All of this results in the </span>organism’s phenotype.


B) DNA copies itself. <span>Meselson and Stahl conducted the experiments on DNA replication in which they used </span>E. coli<span> bacteria as a model system. After they labelled all bacteria's DNA with heavy 15N by using medium with heavy 15N, they switched bacteria to medium with light 14N. After several generations, all bacteria's DNA was labelled with light 14N. This experiment evidenced that the self-replication of DNA is semi-conservative process.</span>
5 0
3 years ago
Other questions:
  • Adapted from images courtesy of NIH and Wikipedia.
    9·2 answers
  • Fill in the blank. Bacteria of viruses can cause ----------- diseases. Which are increasing in occurrences geographic area, or b
    6·1 answer
  • Which plant tissue transports sugars from the leaves of a plant back to the roots for storage?
    13·1 answer
  • If you build your device, you will need to turn in a video clip or photograph of your device along with a written description on
    6·1 answer
  • In the three domain system the domain eukarya consists of all organisms that have which of the following
    9·2 answers
  • Explain the relationship between cells, tissues, organs, and organ systems.
    10·2 answers
  • You are studying the source of new virus that has recently infected humans. You suspect that the virus was transferred from othe
    11·1 answer
  • What are the roles of fungi? Check all that apply.
    11·2 answers
  • An adaptation is __________.
    13·1 answer
  • Answer all parts of the question:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!