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avanturin [10]
3 years ago
13

When chromatin is condensed gene expression is likely taking place?

Biology
1 answer:
Setler [38]3 years ago
7 0

<span>Gene expression is taking place when chromatin is less condensed. Highly compacted chromatin is not accessible to the enzymes involved in DNA transcription, replication and repair because transcription is being inhibited or inactive. Therefore, looser configuration permits transcription or gene expression to take place. </span>

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What type of solution is this cell sitting in?
Dafna1 [17]

Answer:

The correct option is A. The cell is sitting in a hypertonic solution.

Explanation:

A hypertonic solution is a solution in which there are more number of solutes present in the solution than inside the cell. The solutes then tend to pass into the cell through diffusion from the solution.

As it can be seen in the diagram, the concentration of salt is more in the solution i.e 40%. Hence, the salt from the solution enters into the cell by diffusion and has a concentration of 10% inside the cell which shows the cell to be placed in a hypertonic environment.  

6 0
3 years ago
A group of students is reviewing information about cast composition in preparation for a discussion on the advantages and disadv
san4es73 [151]

Answer:

Plaster cast is made up from dry muslin containing starch or dextrose and calcium sulfate.

Explanation:

It is applied to protect and  is immobilize an injured bone or joint because it provides rigidity.

It is also used to help the bone and joint from reduce pain that is created during movement.

When plaster becomes wet,it reacts (Between water and calcium sulfate) and produces heat that eventually sets the plaster.It becomes hard when it dries.

The color of plaster casts are smooth and white.

4 0
3 years ago
When the comb jelly, Mnemiopsis leidyi, was introduced into the Black Sea, its population exploded to 500 comb jellies per cubic
nikitadnepr [17]

The answer is invasive species.


Invasive species are species that are not native to specific ecosystem, but they have a capability to spread widely through the ecosystem, This way they can threaten native species of the ecosystem or cause environmental harm. 

<span>After being introduced into the Black Sea, they greatly affect local ecosystem. In the new area, they have no natural predators and are able to spread. If they spread beyond the area they are introduced, they become invasive species which can overgrow native biotopes and are a great threat to the local biodiversity. This could lead to the extinction of some native species.</span>

7 0
3 years ago
What evidence did Mendel find that supported his law of independent
inn [45]

Answer:

It's B

Explanation:

Law of independent assortment stated that individual heredity factors assort independently during gamete production. the evidence that Mendel find that supported his law of independent assortment is : different traits are passed on independently of each other

3 0
3 years ago
The front leg of an iguana and the wing of a bird look different, but both limbs likely evolved from the same limb of a shared a
mario62 [17]
A homologous<span> structure is an organ, system, or body part that shares a common ancestry in multiple organisms. So the Structure is said to be C) Homologous. Hope this Helps</span>
5 0
2 years ago
Read 2 more answers
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