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klemol [59]
3 years ago
15

Describe the major steps of cell fractionation and centrifugation and explain why they are useful techniques

Biology
1 answer:
nalin [4]3 years ago
5 0
Naguara chamo tú quieres que te hagan la tarea si eres arrecho
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Gh
Rus_ich [418]

I thought it was (d) but I might be wrong

5 0
3 years ago
Skin is able to prevent most microorganisms from entering the body by
Goshia [24]
The structure of the skin is an effective barrier against bacteria. The multiple layers of epidermis, while can be invaded by foreign organisms, has a high turnover rate which means it is constantly shedding, therefore even the bacteria is shed protecting the body. Lastly, the skin's lipids maintain an acidic pH which slows and stops growth and replication of bacteria.
8 0
3 years ago
Punnett Squares are used by geneticists to determine the likely genotypes of the offspring of two parents.
PilotLPTM [1.2K]
That's correct - it's a square where on one axis, the paternal allele (allele = one of the possible forms of the same gene), and on another the maternal allele is listed. Often, it's also indicated whether an allele is recessive or dominant.

Then, in the table that results, all the possible "combinations" of allele between the paternal and maternal party are created. If you count how often a certain combination appears, it indicates the likelihood of that combination.
See the picture (though it is directly from Wikipedia, please note). The likelihood of BB is 25%, of Bb is 50%, and of bb 25%.

6 0
3 years ago
How are alleles segregated in sexually reproducing organisms?
Sauron [17]

Answer: sexually reproducing organisms

Explanation: In most sexually reproducing organisms, each adult has two copies of each gene--one from each parent. These genes segregate from each other when gametes are formed. Alleles for different genes usually segregate independently of each other.

4 0
3 years ago
What is an adaptation of reptile kidneys?
Ivanshal [37]

Answer:

Adapted to conserve water.

Explanation:

Living on land means limited access to drinking water, so reptiles' kidneys have adapted. They conserve water by producing less urine in more concentrated forms.

Hope this helps!

4 0
3 years ago
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