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pishuonlain [190]
3 years ago
15

2. What encloses the cell?

Biology
1 answer:
IrinaK [193]3 years ago
7 0
It’s the plasma membrane! Double check
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How do punnett squares help us determine the inheritance patterns for different traits?
lina2011 [118]

Explanation:

<em>Punnett squares can determine the likelihood of producing a child with a particular trait. Two individuals who know their genotype for the trait, using a Punnett square allows them to visualize the potential genotypes of their offspring as well as determine the likelihood of trait expression.</em>

6 0
3 years ago
Destion 1
Elodia [21]

The cost-benefit analysis done to investigate a proposed mine site would take into consideration the cost of environmental restoration after mining and the value of the ore to be extracted from the mine.

<h3>Cost-benefit analysis</h3>

This is an analysis done to assess the cost and benefits of actions.

For an action to be profitable, the benefits must be more than the cost.

In this case, for a mine site, the value of the ore to be extracted from the mine has to be more than the cost of having to restore the site after mining.

Every other cost can also come in but the two major ones are those highlighted.

More on cost-benefit analysis can be found here: brainly.com/question/3443140

7 0
2 years ago
What does it mean if the Change in Mass is a positive number?
tekilochka [14]
<span>If the change of the mass is a positive number that would mean that there was an increase in the total amount of mass. For example if something has a mass of 75 kg and experiences a positive change of 5 kg the new mass would be a resulting 80 kg.</span>
6 0
3 years ago
Researchers are studying the last two phases of mitosis, anaphase and telophase, in actively dividing cancer cells. Different fl
Zigmanuir [339]

Answer: Telophase

Explanation:

Mitosis is a process of division of the nucleus, which consists of the equal sharing of genetic material (DNA). This type of division occurs in somatic cells and the next step after mitosis is the division of the cytoplasm (cytokinesis), to form two genetically identical daughter cells.

First, it is necessary for the genetic material to be duplicated, so that each newly created cell receives the correct number of chromosomes (structure smade up of DNA). To separate these chromosomes, during <u>anaphase</u>, the chromosomes are anchored to the spindle microtubules and aligned at the metaphase plate (the center of the cell). The sister chromatids (two copies of a chromosome) are separated by the microtubules anchored to their kinetochores as they disassemble, heading toward the respective centrosomes (an organelle in which microtubules grow). Then, the microtubules pushing the centrosomes (and the set of chromosomes associated with them) toward opposite ends of the cell. Since it is necessary for the chromosomes to go to the poles of the cell, new cells are formed. So in this step, <u>it is necessary that the nuclear envelope is not present (otherwise, the nucleus could not divide).</u>

During <u>telophase</u>, microtubules not attached to kinetochores continue to elongate, further stretching the cell. The sister chromosomes are each associated with one of the poles, and as <u>the division of the nucleus is completed, the nuclear envelope reforms around both chromosome sets</u>,<u> using fragments of the nuclear envelope of the original cell.</u> The chromosomes are decondensed back into chromatin and only the cytokineses remain.

The fluorophore labels proteins that are part of the nuclear membrane and as telophase forms back, these proteins are expressed more. So, since the proteins of the nuclear envolope are labeled with a green fluoroforum, the green fluorescence would be most intense during telophase. Therefore there will be more intensity of green color compared to anaphase where the nuclear membrane is disintegrated.

4 0
3 years ago
You can physically see the__of a trait, but not the__
stepladder [879]
Phenotype, genotype?
6 0
3 years ago
Read 2 more answers
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