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Softa [21]
3 years ago
6

Capsules

Biology
1 answer:
Vesnalui [34]3 years ago
4 0

Answer:correct answer is E. may correlate with an organism's ability to cause disease,are typically negatively stained and are stained as wet mount.

Explanation:

Capsule is a hydrated polysaccharide structure that cover the outer layer of the bacterial cell wall.It is considered as a virulence factor because it enhances the ability of the bacteria to cause disease.

Because capsules are tightly packed,they cannot be stained with standard stains as the capsule cannot absorb these dyes .So in such cases,negative staining technique is employed where the bacteria cells and its background are stained darker than the capsule(which doesn't stain).By this method,capsule can easily seen under microscope.

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If a person eats a low fat diet with a lot of sugar, can they gain weight? why?
lora16 [44]

Explanation:

well ermm if it's low fat and it doesn't have Alot of sugar I don't think u can but if it has a lot of sugar then probably

3 0
3 years ago
What are the chromosomes called when they look like Xs​
Marina86 [1]

Answer:

I think you're referring to the Metaphase...

Explanation:

During Cell Division (or, rather before!) the DNA needs to be replicated. This normally is done by DNA Polymerase, and results in two identical double strands (the "Sister Chromatids".

These chromatids are held together at the Centromere, which will be the heart of the "X"-shape. After that the DNA is packed into Chromosomes by winding it around proteins called Histones. If I remember correctly there are 5 different Histones.

This "Zipping Up" makes the chromosomes more visible.

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3 years ago
A gene with the sequence ATTCATTCA underwent duplication after a few generations. Which sequence represents this gene after the
Ratling [72]

Answer:

The sequence would be <u>ATTCATTCA</u>.

Explanation:

Usually, when a sequence is duplicated, one of them becomes a non-coding. It's just like a computer. There can only be one specific file, or else a duplicated one will just replace the existing one, if you allow the file to do so. Same with DNA. This is why most of our DNA have no function and why we lost genetic abilities such as being able to produce our own Vitamin C.

So instead of the new gene being ATTCATTCAATTCATTCA, it's simply ATTCATTCA. You simply cannot have duplicates, just like computer files. I wish I could share an amazing video by PBS Eons giving a great explanation about genes and stuff, but sadly Brainly doesn't like such stuff, so just <em>search up in ㄚㄖㄩㄒㄩ乃乇 (ebuTouY) "genes we lost along the way" and it should be the first video that pops out.</em> Trust me, it's a great video, it's much better than my explanation.

4 0
3 years ago
Categorize the following: intestinal muscles, heart muscles, hand muscles, and neck muscles.
Pie

Answer:

The given muscles can be categorized into following categories:

Smooth muscles: These are involuntary muscles and non-striated muscles which are usually found within the walls of internal organs such as stomach, intestine, uterus et cetera.

Cardiac muscles: These are involuntary and striated muscles which are only associated with the heart.

Skeletal muscles: These are voluntary in nature and striated in structure. They are anchored to the bones with the help of tendons. They help in skeletal movement such as maintaining posture, locomotion et cetera. For example, hand muscles and neck muscles.

3 0
3 years ago
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What is the name of a complex group of organisms that are connected and interact with one another?​
Vsevolod [243]

Answer:

species complex

Explanation:

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