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Alexxandr [17]
2 years ago
12

Random changes in the gene pool of a small population

Biology
2 answers:
Viefleur [7K]2 years ago
7 0

gene flow or genetic drift can cause changes   in a population

Marina86 [1]2 years ago
6 0

It's called genetic drift: when changes in the alleles of a population are altered due to chance. For example:

There's a population of red beetles. A couple of the beetles are blue due to a genetic mutation. Suddenly, an elephant steps on the beetles, which, coincidentally, most of which were red. This resulted in more blue beetles than red, and after a few generations, mist other beetles are blue, and only a few are red.

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What is the name of the darker blue/purple section that is cut out of the magenta molecule?
seraphim [82]

Answer:

Basophils

Explanation:

Basophils are a special type of  white blood cells that are produced in the bone marrow and their main role entails inducing and maintaining allergic conditions.

In staining, Basophils shows  dark blue granules which contains histamine, heparin and peroxidase. In preparation of Schiff reagent ; magenta molecule ( Fuchsin dye ); gives a range of colors from magenta to purple. The stain cause nuclei to become blue, and glycogen and fungi to become magenta in color.

3 0
3 years ago
Match the following. 1. period during the life of a cell when it has finished mitotic division G1 phase 2. period during the lif
zimovet [89]

Ans.

The cell cycle includes a series of events that results in the formation of daughter cells from a single parent cell. These events include interphase, followed by M phase. The interphase consists of three phases, G0 (Gap 0) phase, G1 phase, S (synthesis) phase, G2 phase, while the M phase consists two phases, karyokinesis (mitotic or meiotic phase) and cytokinesis. At the end of cell cycle, cell enters into G0 phase again and the cycle goes subsequently.

The sequesnce of cell cycle events can be written as follows:

G0→G1→S→G2→M→G0→G1→....

Thus, according to the cell cycle sequence, these terms can be matched as:

1. When a cell finishes its mitotic division, it enters to G0 phase, which is also known as rest phase. Thus, statement 1. matches with G0 phase.

2. The period between end of mitosis and synthesis of genetic material for next mitotic division shows G1 phase, in which cell prepares itself for division. Thus, statement 2. matches with G1 phase.

3. The period of interphase between synthesis of new genetic material and the beginning of mitosis is G2. Thus, statement 3. matches with G2 phase.

4. The period between two mitotic division is interphase. Thus, statement 4. matches with interphase.

5. The period of cell division, during which a cell is performing actual cell division is M phase. Thus, statement 5. matches with M phase.

6. The period of interphase, during which genetic material gets doubled is synthesis or S phase. Thus, statement 6. matches with S phase.


6 0
3 years ago
Read 2 more answers
What are the three types of symbiotic relationships? with definitions please
Licemer1 [7]

Answer:

The three types of symbiotic relationships are mutualism, parasitism, and commensalism. In mutualism, both organisms gain something, in parasitism, one organism gains and the other loses, and in commensalism, one gains and the other doesn't gain or lose

5 0
3 years ago
How do lipids differ from one another in function?
algol [13]

Answer:

The three fatty acids can be different from one another. Since the hydrocarbon chains are very non-polar, fats do no dissolve in water; instead, fat molecules tend to coalesce with one another. Since a fat molecule has 3 fatty acids connected to a glycerol molecule, they are also called triglycerides.

6 0
3 years ago
This condition is also known as nearsightedness:
Contact [7]

Answer:

The correct answer is B. Myopia is also known as nearsightedness.

Explanation:

Myopia is a refractive defect of the eye in which parallel light rays converge at a focal point located in front of the retina, instead of converging on the same retina; it is the inverse defect to farsightedness, in which the light rays reach the retina before converging.

A person with myopia has difficulty focusing well on distant objects, which causes visual acuity deficits and can also lead to headaches, strabismus, visual discomfort and eye irritation.

4 0
3 years ago
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