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Marina86 [1]
3 years ago
15

Explain in your own words two ways that we know the cell clones carry the recombinant plasmids

Biology
1 answer:
Nata [24]3 years ago
4 0
Plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exists in bacterial cells, and they also occur in some eukaryotes. The genes carried in plasmids provide bacteria bacteria with genetic advantages, such as antibiotic resistance. To know whether the cell carry recombinant plasmids; only cells with a plasmid will reproduce and also the color of the colonies in E. coli plasmid recombination experiments allows scientists to distinguish colonies with recombinant plasmids from those without. 
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wolverine [178]

Answer:

Scanning

Explanation:

7 0
2 years ago
What is the difference between circulatory system and types of circulation
Nady [450]

Answer:

The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.

There are two main types of circulatory systems: 1. open circulatory systems and closed circulatory systems. Open circulatory systems are systems where internal organs and body tissues are surrounded by circulatory fluid. This fluid is called hemolymph, and it's pretty much like blood, except that it doesn't contain oxygen transporting cells.

2. The closed circulatory system of some mollusks and all vertebrates and higher invertebrates is a much more efficient system. Here blood is pumped through a closed system of arteries, veins, and capillaries. Capillaries surround the organs, making sure that all cells have an equal opportunity for nourishment and removal of their waste products. However, even closed circulatory systems differ as we move further up the evolutionary tree.

5 0
3 years ago
Which describes the Dewey Decimal system
GaryK [48]

Answer:

Option 2, or B: a way of classifying books

Explanation:

Dewey Decimal system definition = The Dewey Decimal Classification (DDC), colloquially the Dewey Decimal System, is a proprietary library classification system first published in the United States by Melvil Dewey in 1876.

What is the Dewey Decimal system? Well, the definition says it is a proprietary library classification system.

So..

Our answer is 2 or B: a way of classifying books.

Hope this helps!

- Melanie

8 0
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slava [35]
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How much energy is transferred to when one organism consumes another organism
Nostrana [21]
Each time one organism eats another organism, a transfer of energy occurs.in the form of sugars which an organism breaks down for energy.
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