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ratelena [41]
3 years ago
15

What are major differences between DNA and RNA

Biology
2 answers:
NNADVOKAT [17]3 years ago
8 0
DNA and RNA are nearly identical. however, there are differences that account for the very different functions of the two molecules. RNA has a ribose sugar instead of a deoxyribose sugar like DNA. RNA nucleotides have a uracil base instead of thymine.
Anestetic [448]3 years ago
4 0
The sugar found in DNA contains one less oxygen molecule than the sugar found in RNA.
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What helps a plant retain water
gizmo_the_mogwai [7]

Answer:

<em>the</em><em> </em><em>root</em><em> </em>

Explanation:

they hold water n they transport food

5 0
3 years ago
What are the two different results of a lack of calcium and a lack of atp?
liq [111]
<span>There are numerous proteins in muscle. The main two are thin actin filaments and thick myosin filaments. Thin filaments form a scaffold that thick filaments crawl up. There are many regulatory proteins such as troponin I, troponin C, and tropomyosin. There are also proteins that stabilize the cells and anchor the filaments to other cellular structures. A prime example of this is dystrophin. This protein is thought to stabilize the cell membrane during contraction and prevent it from breaking. Those who lack completely lack dystrophin have a disorder known as Duchene muscular dystrophy. This disease is characterized by muscle wasting begininng in at a young age and usually results in death by the mid 20s. The sarcomere is the repeating unit of skeletal muscle. 

Muscle cells contract by interactions of myosin heads on thick filament with actin monomers on thin filament. The myosin heads bind tightly to actin monomers until ATP binds to the myosin. This causes the release of the myosin head, which subsequently swings foward and associates with an actin monomer further up the thin filament. Hydrolysis and of ATP and the release of ADP and a phosphate allows the mysosin head to pull the thick filament up the thin filament. There are roughly 500 myosin heads on each thick filament and when they repeatedly move up the thin filament, the muscle contracts. There are many regulatory proteins of this contraction. For example, troponin I, troponin C, and tropomyosin form a regulatory switch that blocks myosin heads from binding to actin monomers until a nerve impulse stimulates an influx of calcium. This causes the switch to allow the myosin to bind to the actin and allows the muscle to contract. </span><span>
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6 0
3 years ago
Which feature of the sun extends into the corona but is anchored in the photosphere?
viva [34]
The answer is prominence because when Flame-like gas eruptions are anchored to the sun's photosphere and extend outward in an arch-like shape all the way into the corona, which is the sun's hot outer atmosphere.

Read more on Brainly.com - brainly.com/question/9162415#readmore
6 0
3 years ago
What would lead to competition as a population increases
Varvara68 [4.7K]

Answer:

for food, water, shelter, mates, light, and other resources needed for survival and reproduction.

Explanation:

hope this helps

so sorry if this is wrong

3 0
2 years ago
Please help me out with this!!<br> (Explain)<br> Thank you soo much!!<br> BRAINLIEST TO BEST ANSWER
WARRIOR [948]

Answer:

C. NAD⁺  

Step-by-step explanation:

NADH is oxidized to NAD⁺ in Complex I of the Electron Transport Chain.

NADH ⟶ NAD⁺ + H⁺ + 2e⁻

The electrons continue through the Electron Transport Chain, and the NAD⁺ is used in three places during the Krebs Cycle.

(a) Isocitrate to oxalosuccinate

Isocitrate + NAD⁺ ⟶ oxalosuccinate + NADH + H⁺

(b) α-Ketoglutarate to succinyl-CoA

α-ketoglutarate + NAD+ + CoA → succinyl CoA + CO₂ + NADH

(c) Malate to oxaloacetate

Malate + NAD⁺  ⟶ oxaloacetate + NADH + H⁺

The NADH produced by these three reactions can then be used by Complex I in the Electron Transport Chain.

6 0
3 years ago
Read 2 more answers
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