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Ray Of Light [21]
3 years ago
7

Which is the DNA tehory? How do we know the DNA contains genetic information?

Biology
1 answer:
ValentinkaMS [17]3 years ago
6 0

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code. Human DNA has around 3 billion bases, and more than 99 percent of those bases are the same in all people. DNA sequencing theory is the broad body of work that attempts to lay analytical foundations for determining the order of specific nucleotides in a sequence of DNA

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A plane is traveling at 80 m/s. To prepare for landing, it decreases its speed to 50 m/s in 120 s.
emmainna [20.7K]

Answer:

The deceleration of the plane is 0.25 m/s^{2}.

Explanation:

Deceleration is the converse of acceleration.

From first law of motion, we have;

v = u + at

where: v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Thus,

v = 50 m/s

u = 80 m/s

t = 120 s

50 = 80 + 120a

50 - 80 = 120a

-30 = 120a

a = \frac{-30}{120}

  = -0.25

a = -0.25 m/s^{2}

The deceleration of the plane is 0.25 m/s^{2}.

4 0
3 years ago
If the pinsulin receptor, a, example of an integral membrane protein, is cotranslationally inserted into the ER membrane with th
kicyunya [14]

Answer:

The correct answer is option C.

Explanation:

As the proteins are produced in the endoplasmic reticulum membrane, they amalgamate with the vesicles and then they are conducted towards the membrane's cell surface where they act as an integral membrane protein.  

The outer end will bind with the ligand and the other one will get attached towards the cytoplasm. Thus, the pinsulin in the given case will combine with the C terminus of the protein.  

3 0
3 years ago
Which cells would you be most likely to find in the dermis?
12345 [234]
Salutations!

Which cells would you be most likely to find in the dermis?

A dermis is the beneath and upper layer of a cell that makes up the skin. The cells that are found in dermis is fibroblasts and macrophanges, and sometimes white blood cells and mast cells.

Thus, your answer is option D.

Hope I helped (:

Have a great day!
8 0
3 years ago
Read 2 more answers
Georgia is the world's leading producer of this type of clay used in the manufacturing of
kap26 [50]

Answer:

Georgia is the world's leading producer of Kaolin (china clay).

Explanation:

Kaolin or china clay contains the mineral kaolinite mainly. It also contains varying amounts of other minerals like muscovite, feldspar, quartz, etc. In order to prepare it for commercial use, the clay in its natural form is then chemically treated and washed with water to remove the other minerals.

Kaolin is extensively used in the ceramic industry and the paper-coating industry. The high fusion temperature and white burning characteristics are used in the ceramic industry for the manufacture of chinaware, porcelain, and refractories. In the paper-coating industry, the kaolin is mixed with the cellulose fiber in the paper sheet. This gives the paper its color, opacity, and printability. It is also used as a pigment additive in paints, as a filler in plastic and rubber compounds, and in pharmaceuticals.

6 0
3 years ago
A 17-year-old male is brought to the emergency department for treatment of injuries received in a motor vehicle accident. A spin
valkas [14]

Answer:

Cervical and Thoracic areas.

Explanation:

The most common sites of injury are the cervical and thoracic areas. SCI is a common cause of permanent disability and death in children and adults. The spine has 33 vertebrae.

7 0
4 years ago
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