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Blizzard [7]
3 years ago
6

The brain of an alzheimer's victim displays plaques, which are _____, and tangles, which are _____.

Biology
1 answer:
pav-90 [236]3 years ago
3 0

Scientists can also glimpse the awful effects of Alzheimer's disease when they look at brain tissue beneath the microscope:

Alzheimer's tissue has numerous fewer nerve cells and synapses than a well brain.

<span> <span>Plaques, unusual clusters of protein particle, which are construct up between nerve cells.</span> </span> <span> <span><span>Dead and dying nerve cells contain tangles,</span> which are produce of twisted strands of a further protein.</span> </span>

<span>Scientists are not absolutely sure what causes cell death and tissue deficiency in the Alzheimer's brain, but plaques and tangles are key suspects.</span>

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The product of the lac z gene is an enzyme. What does this enzyme do in the bacterial cell?.
Mice21 [21]

The product of the lac z gene is an enzyme, this enzyme do in the bacterial cell that enzyme is known as β-galactosidase, that's an important a part of the metabolism of lactose.

<h3>What are lactose restriction enzyme ?</h3>

When a restriction enzyme along with BamHI is used to reduce the plasmid, it might reduce the circle at one place. The reduce could open up the circle withinside the LacZ gene. This is due to the fact gene cloners have located a bit of DNA that has many limit enzyme reducing  in the LacZ gene.

It cleaves (separates) a disaccharide lactose molecule into a ways greater digestible glucose and galactose lacZ encodes β-galactosidase (LacZ), an intracellular enzyme that cleaves the disaccharide lactose into glucose and galactose.

Read more about the disaccharide :

brainly.com/question/13283251

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3 0
2 years ago
What is the measure of an inscribed angle with an arc angle measure of 120°
romanna [79]
<span>If inscribed  intercepts arc, then  = half the measure of arc = 60º.
The answer is </span><span>60º.</span>
3 0
2 years ago
What causes variety in the characteristics between organisms of the same species?
WARRIOR [948]

Mutations in these genes can produce new or altered traits, resulting in heritable differences (genetic variation) between organisms. ... One definition of a species is a group of organisms that can reproduce with one another and produce fertile offspring.


6 0
2 years ago
Which of the following statements is most clearly inductively derived? (eText Concept 1.3)
Svetlanka [38]

Answer:

The correct answer is option - A.

Explanation:

The inductive reasoning is an approach or method that is based on the supplying evidence for proving the conclusion as true. Or in their words, inductive reasoning is an approach in which specific statements to a generalized conclusion.

The statement of option "a" provides a piece of evidence and on the base of evidence derived a conclusion.

Thus, the correct answer is option - A.

5 0
3 years ago
A fern is in the sporophyte phase of its life cycle. Which of the following best explains what happens next in the fern’s life c
marin [14]

Answer: a. Haploid spores are released to form zygotes, which grow into gametophytes.

A fern has two different stages of the life cycle; the sporophyte and gametophyte. In the sporophyte, spores are released. After this life cycle comes the gametophyte or the sexual phase,  <span>haploid spores are released to form zygotes, which grow into gametophytes. </span>

6 0
3 years ago
Read 2 more answers
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