20.

Biology

2 answers:

grin007 [14]3 years ago

7 0

Answer:

D. Sugars and phosphates

Explanation:

DNA or deoxyribonucleic acid which is a self-replicating material present in nearly all organisms and the constituent of chromosomes, It is also the carrier of the basic instructions of life!

We have a total of 23 chromosomes in our cells!

hope this helps

<h3>sincerely,</h3><h3>Ur cat friend kittylike11</h3>

xxMikexx [17]3 years ago

3 0

Answer:

Sugars and phosphates

Explanation:

DNA is deoxyribonucleic acid.

The backbone is based on a repeated pattern of a sugar group (deoxyribose) and a phosphate group.

The image below shows one straightened-out strand of DNA with a backbone of alternating sugars and phosphates.

A is wrong. There is no ribose in DNA.

B is wrong. The nucleic acids A, C, G, and T join one strand of DNA to the other.

C is wrong. There is no RNA in DNA.

You might be interested in

Which of the following must be true of the structures of axons and muscle cells an order for a nerve and passes to stimulate mus

Dima020 [189]

A muscle stimulated<span> at high-frequency with some short relaxation time between ... smooth </span>muscle cells<span>... voluntary via axonal endings of the somatic </span>nervous<span> system .... </span>Which of the following<span> does NOT occur during skeletal </span>muscle contraction<span>? .... </span>true<span>. the space between he neuron and the </span>muscle<span> is the</span>axon<span> terminal. false.</span>

7 0

3 years ago

Important roles of bacteria include _____.

Tanzania [10]

the answer is decomposition.

6 0

3 years ago

Read 2 more answers

Does talking to plants help them grow? C.E.R

Bezzdna [24]

No plants can’t understand your voice

3 0