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Vinvika [58]
3 years ago
8

Plasmids are used in biotechnology.  Plasmids ---.

Biology
1 answer:
trapecia [35]3 years ago
8 0

The right answer is All answer options describe plasmids.

A plasmid is a natural or artificially modified circular DNA molecule for use in biological research.

The researchers use the plasmids to insert a DNA fragment of interest, thanks to the cloning cassettes. They can clone genes to express proteins or RNAs and analyze them.

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How does the anaphase stage differ in the two phases of meiosis?
Ronch [10]

The answer is c. Anaphase I separates homologous chromosomes and anaphase II separates sister chromatids into daughter cells.


Meiosis is a cell division which results in the reduction of chromosome number by half (from diploid to haploid) in daughter cells. It consists of meiosis I and meiosis II. 

In anaphase I, the sister chromatids separate from each other to the opposite sides of the cells. In meiosis I there are 46 chromosomes in duplicates which are present as pairs of sister chromatids. When comes to separation, homologous chromosomes separates only, but not sister chromatids. Homologous chromosomes are present only in meiosis I.

 In anaphase II, since the cell is haploid, there are 23 chromosomes in duplicates, which are present as sister chromatids. So, in this phase, sister chromatids are those who separates. 


4 0
2 years ago
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Why does maltose have both alpha and beta anomers?
BabaBlast [244]

Answer:

Maltose is a disaccharide sugar made up of two units of glucose.

In cyclic structure, the glucose exists in two anomeric forms; alpha and beta.

These glucose units can either joined by α (1→4) glycosidic bond or by β (1→4) glycosidic bond.

Thus, the maltose exists in two anomeric form alpha and beta.

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2 years ago
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Most narcotics are:
Aloiza [94]

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ALL OF THE ABOVE

Explanation:

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2 years ago
Which of these is classified as an emerging virus that can have a direct impact on human health?
umka21 [38]

Answer:

The correct answer is: D. Ebola.

Explanation:

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  • The natural host of the virus is Fruit bat but it can also infect humans.
  • The transmission of the virus into humans is mediated from infected bats through body fluids.
  • The major disease caused by the virus is is Hemorrhagic fever. In this disease, the platelet (responsible for clotting of blood) count in the blood  drops far below normal. As a result, bleeding can get initiated both in the body interior or exterior. This disease can cause multiple organ failure and death.
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Here is a model of Earth's yearly orbit around the Sun. In this model, the names of the seasons apply only to the northern hemis
Usimov [2.4K]

Answer:

D

Explanation:

4 0
3 years ago
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