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Dominik [7]
3 years ago
11

Different components of blood can be separated by their densities in a centrifuge. this is because blood is:

Biology
1 answer:
Amanda [17]3 years ago
6 0
This is because blood is a SUSPENSION. Blood is composed of different type of particles with different densities. Blood is made up of platelets, white blood cells, red blood cells and the plasma. Blood is an heterogeneous mixture, which mean that all the components of the blood can be separated from one another. A suspension is a mixture which separate out when left standing; blood can be described as a suspension. 
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Let P = purple flowers and p = white, and T = tall plants and t = dwarf. What combinations of gametes could be produced by a het
kirill [66]

Answer:

The combinations of gametes that could be produced from heterozygous individuals for both traits are PT, Pt, pT and pt.

Explanation:

An individual is heterozygous for two traits, flower color and stem height, with a PpTt (dihybrid) genotype and a phenotype showing the dominant traits, purple flowers and tall stem.

The genes of this individual for the above-mentioned traits contain different alleles, and taking into account the independent segregation of characters, the alleles present in its gametes could be:

  • <em>Both dominant alleles: PT </em>
  • <em>One dominant and one recessive allele Pt or pT </em>
  • <em>Both recessive alleles: pt </em>

Therefore, the traits of its offspring will depend on the alleles for those traits present in the gamete to which they are combined.

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3 years ago
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ehidna [41]

Answer:

Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).

Explanation:

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Is the practice of genetically modifying human cells ethical? Why or why not?
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It totally depends upon whether modification is being done in somatic cells or germ cells. Somatic cells modification is ethically accepted because it doesn't pass from one generation to another generation but germline modification is considered as unethical because the modification will pass on to the next generation leading to the persistence of modification in future generations. The problem with genetic modifications is that the impacts of modifications are unpredictable, rather than being fruitful they may lead to lethal mutations so if it occurs in just somatic cells, then even if it is lethal/harmful, it will be confined to only that individual but if a lethal mutation occurs in germ cells then it will pass on to the subsequent generations and it will persist in all future generations.

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Alekssandra [29.7K]

Answer:

20, Im not completely sure tho

Explanation:

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