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Nostrana [21]
3 years ago
7

The portion of the DNA molecule that can vary is its

Biology
1 answer:
iris [78.8K]3 years ago
7 0
Its' base can vary. The sugar (deoxyribose) stays the same. And the phosphate also stays the same. There are four different bases. The arrangement of the bases in threes are called condons. These code for amino acids. These make proteins which make us what we are. The codes are also called genes.
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PLEASE HELP <br><br> Which of these contain<br><br> DNA and/or RNA?
blondinia [14]

Answer:

dna and rna

Explanation:

DNA is a double-stranded molecule, while RNA is a single-stranded molecule. ... DNA and RNA perform different functions in humans. DNA is responsible for storing and transferring genetic information, while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.Feb 2, 2020

3 0
2 years ago
Which descriptions apply to a chloroplast?
jenyasd209 [6]

Answer: (A) a membrane‑bound organelle with stacks of thylakoid discs called grana.

(E) the main site of photosynthesis in a plant cell.

Explanation:

The plant chloroplast is a large organelle, it is bounded by a double membrane like structure that is chloroplast envelop.

The chloroplast consists of chlorophyll pigment which traps the light energy from sun and converts it into chemical energy in the form of ATP. Thus the chloroplast is the main site for photosynthesis. Including the inner and outer membrane structure it also posses the third internal membrane structure which is called as the thylakoid membrane. The thylakoid membrane forms the network of flat discs which are called as thylakoids, the thylakoids are arranged in stacks which are called as grana.

The thylakoid membrane is the center point for the synthesis of ATP through a chemiosmotic process.  

4 0
3 years ago
The first organisms to photosynthesize are called
Lapatulllka [165]

Answer:

cyanobacteria

Explanation:

3 0
3 years ago
How are carbohydrates and lipids alike?
SVEN [57.7K]
A. They are organic and found in living things
6 0
3 years ago
Individual factors affecting safety include those that are related to the functioning of body systems and those that are directl
Tresset [83]

Answer:

d. Musculoskeletal

Changes in musculoskeletal body system affect overall mobility increasing the propensity of falling?

Explanation:

Problems in the musculoskeletal system can affect mobility through restricting the range of motion and strength, increasing the chances of falling. The changes to the neurologic system damages cognitive functioning.

Changes to the hepatic system can affect mental status while changes to the cardiopulmonary system can affect activity tolerance.

8 0
3 years ago
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