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11Alexandr11 [23.1K]
3 years ago
9

DNA is made of two chains of nucleotides. Which type of bonds hold the chains together?

Biology
2 answers:
Mazyrski [523]3 years ago
5 0

Your answer would be, DNA is made of two chains of nucleotides; The type of bonds that hold the chains together, are Hydrogen Bonds.






Hope that helps!!!!! :) (Answer: Hydrogen Bonds.).

Leno4ka [110]3 years ago
3 0
"Hydrogen Bonds" is the correct answer
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D. Xylem and pholem

Explanation:

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Do Different cell types also have special duties, like building skin or bone, pumping out hormones, or making anti-bodies.
Schach [20]

Answer:

Yes, different cell types also have special duties, like building skin or bone, pumping out hormones, or making anti-bodies.

Explanation:

Cell is the basis structural and functional unit of a living organism. The body of a human is composed of trillions of cells that are organized in around 200 types of cells.

<u>A tissue is simply a group of specific kind of cell that have  a specific role.</u>

  • For example: The nervous system contains cells called neurons that have ability to transmit message from one place to another and allow us to respond to any environmental stimuli, such as heat, cold, danger etc.
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Thus we see that different types of cells have special functions and all these different cells coordinate with each other to make an organized and functioning body of a living organism.


Hope it help!

7 0
3 years ago
How can some single-celled organisms survive even though they are really simple
bija089 [108]
They can survive through homeostasis, the balancing of the internal temperature of the cell. <span />
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Which unit is more useful to measure in. Milliliters or liters and why?
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6 0
3 years ago
A medical test indicates that a patient has a defective protein. This
OleMash [197]

Answer:

number of nitrogen bases

Explanation:

<em>The correct answer would be the number of nitrogen bases.</em>

<u>A defective protein is usually caused by mutation, which is defined a change in the DNA sequence of an organism.</u>

Mutation can occur in a variety of ways including:

<em>1. Deletion of nucleotide base sequence in the DNA</em>

<em>2. Addition (insertion) of nucleotide base sequence in the DNA</em>

<em>3. Duplication of nucleotide sequence in the DNA</em>

<u>A change in number of phosphate molecules, sequence of subunits DNA and sequence of sugar molecules if possible in nature, do not lead to mutation if the change does not affect the sequence of DNA.</u>

Hence, the correct option is number of nitrogen bases.

6 0
4 years ago
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