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Lemur [1.5K]
3 years ago
6

The backbone of dna (i.e., sides of the dna "ladder") consists of

Biology
2 answers:
yulyashka [42]3 years ago
8 0
Alternating phosphate and sugar residues
Nezavi [6.7K]3 years ago
6 0

The structure of DNA consists of three main molecules-

1. Nucleotides

2. Sugar

3. Phosphate

Now, nucleotides are present on the inner side of the DNA strand, the sides or the backbone of DNA is made of the other two molecules, i.e. sugar and phosphate. The structure looks like the image shared below. One carbon atom of the sugar molecule is connected to nucleotide, and two carbons are connected to phosphates at two sides. This way a chain or the backbone of DNA is formed.

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Can some please do Jupiter,Saturn and Neptune what I need from those three each are the distance from earth there diameter and 1
goldfiish [28.3K]

Answer:

Jupiter, Saturn, Neptune

Explanation:

Jupiter - 433.95 million miles or AU is 4.2, diameter 86,881 miles, and interesting fact is The Great Spot is the largest storm in the solar system

Saturn - 892.47 million miles or 11 AU, diameter 72,367, and interesting fact is Saturn have 8 rings and biggest rings .

Finally Neptune - 2.8345 billion miles or  30.5 AU, diameter 30,599 miles, and interesting fact is Neptune is the windiest and coldest place on this solar system.

Hopes it help.

7 0
3 years ago
________ are the central nervous system cells that provide structural support, promote efficient communication between neurons,
Vlad [161]

Answer:

The correct answer to fill in the blank is: glial cells.

Explanation:

<u>Glial cells are the other type of cells aside from neurons that are present in the nervous system. </u>

Glial cells are present both in the Central Nervous System and the Peripheral Nervous System, but in each of these anatomical divisions, the glial cells differ. For example, in the <u>Central Nervous System</u> there are oligodendrocytes (form myelin), astrocytes (provides nutrition for the neurons, maintains the ionic balance, repairs the tissue after damage, and forms the blood-brain barrier), ependymal cells (produces cerebrospinal fluid), and microglia (a specialized macrophage); while in the <u>Peripheral Nervous System</u> there are only Schwann cells (form myelin) and satellite cells (provide nutrients for the neurons).

5 0
3 years ago
Give two examples of organisms that may have coevolved
user100 [1]
Fig reproduction and fig wasps are a common example used. 

However, you're looking for two organisms so predator and prey. This could be Coyote and Deer, Lion and Gazelle... You name it.
3 0
4 years ago
How does the process of fertilisation take place​
luda_lava [24]

Answer: Fertilization in plants occurs after pollination and germination. Pollination occurs through the transfer of pollen which is the male microgametes of seed plants, producing the sperm – from one plant to the stigma (the female reproductive organ) of another.

Explanation:

6 0
3 years ago
List the 3parts of cell theory
GarryVolchara [31]

Answer:

1. All living things are composed of cells.

2. Cells are the basic units of structure and function for living things.

3. All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.

Explanation:

8 0
3 years ago
Read 2 more answers
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