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larisa [96]
3 years ago
10

Describe the structure and shape of dna

Biology
2 answers:
SashulF [63]3 years ago
8 0
The configuration is a double helix.
RoseWind [281]3 years ago
7 0
The DNA molecule is shaped like a ladder that is twisted into a coiled configuration called a double helix. The nitrogen bases form the rungs of the ladder and are arranged in pairs, which are connected to each other by chemical bonds.
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A communications satellite transmits a radio wave at a frequency of 9.4 x 10^9 Hz. What is the signal’s wavelength? Assume the w
sergejj [24]
To calculate this we will use the light equation:
c=λ*f

We have Frequency f=9.4* 10^{9}Hz.
We know that speed of light in vacuum is c =3.8* 10^{8} m/s.
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).

So:
f=9.4* 10^{9}1/s
<span>c =3.8* 10^{8} m/s
</span>
<span>c=λ*f
</span>⇒ λ= \frac{c}{f}
⇒ λ= \frac{3.8* 10^{8}}{9.4* 10^{9}}
⇒ <span>λ</span>=0.04 m

5 0
3 years ago
An igneous rock that contains mostly pyroxene and olivine has ?
Masteriza [31]
It sounds like you may be looking for Peridotite, which is a type of ultramafic igneous rock that contain olivine as their main mineral in combination with <span>pyroxenes and amphiboles. I hope this helps! </span>
5 0
3 years ago
Read 2 more answers
Describe how the role of phloem would would be affected if the leaves start to die off
Naya [18.7K]
The conductive tissues of the angiosperms are the xylem which drives the raw sap and the phloem which conducts the elaborate sap.The phloem, or liber, drives the elaborate sap, solution of organic substances rich in carbohydrates, from the leaves to the other organs.

The elaborate sap (which contains organic substances produces by photosynthesis) is produced in the leaves, where the majority of the chlorophyll subsist, so if the leave die off, the production of organic substances and the elaborate sap are reduced, so its transport by the phloem will be reduced, and this is how the phloem will be affected by the dying of the leaves.
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Pepsi [2]

Answer:

it should be the snake bc I have one and the mouse gets eat in by the snake

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HELP PLEASE WILL GIVE BRAINLY!! <br><br> What is a complementary RNA strand to TAG?
Kryger [21]

Answer:

It's AUC.

Thymine is substituted by Uracile in RNA and it's complementary to Adenine. Citosine is complementary to Guanine

6 0
3 years ago
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