40 POINTS AND BRAINLY

Biology

1 answer:

erastova [34]3 years ago

3 0

Because the RNA molecules that are in most organisms can’t replicate themselves. Further, the RNA molecule that is in most organisms can’t transcribe its information on the DNA.

The DNA molecule readily replicates itself under the right conditions. The reason that DNA molecules replicate themselves much easier than RNA molecules is because DNA has a double helix structure.

The double helix can unzip down the middle, creating two molecules with complementary information.The RNA is generally a single string of base pairs. RNA isn’t double anything. So an RNA molecule usually can’t divide into two molecules with complementary informaiton.

That being said:

RNA molecules in some virus species can replicate itself. This RNA can transcribe information onto the DNA of the host organism.

RNA molecules with a certain structure under the right conditions can replicate themselves. However, replication in RNA is not as reliable as replication of DNA. That is one reason that RNA viruses mutate at a much faster rate than most DNA viruses.

You might be interested in

What effects does hydrogen bonding and polarity have on water?

lesya [120]

Oxygen has a partial negative charge, whereas hydrogen had a partial positive charge.

This means that water molecules are polar and can be used to dissolve a lot of chemicals, that's why water is such a popular solvent.

7 0

4 years ago

How does blood flow through the heart and lungs during fetal circulation?

mestny [16]

Most blood flows across to the left atrium through a shunt called the foramen ovale. then from the left atrium, blood moves down into the lower chamber of the heart. It is then pumped into the first part of the large artery coming from the heart

7 0

3 years ago

How much energy is transferred to when one organism consumes another organism

Nostrana [21]

Each time one organism eats another organism, a transfer of energy occurs.in the form of sugars which an organism breaks down for energy.

4 0

3 years ago

8. What trait is shared by frogs, humans, hares, caimans, and parrots

zavuch27 [327]

They are all tetrapoda.

Tetrapods are animals (group of vertebrates) with four limbs including amphibians (frogs), reptiles (caimans), birds (parrots) and mammals (hares, humans). Even though the subgroups within Tetrapods differ a lot, they all have various adaptations of the skeleton and muscles that enable them movement on land, adaptations of cranium (for head stability), tissues that reduce water loss (because of living outside the water)…Except amphibians all other tetrapoda are amniotes (have amnion layer around embryo)

7 0

3 years ago

Scientists describe a period called the Great Acceleration, in which human activities began significantly altering global system

victus00 [196]

Answer:

The invention of agriculture, advances in medical technology that have greatly reduced the human death rate and he rapid increase in the uses of fossil fuels, fertilizers, metal ores, and other resources.

Option: (A), (C) and (D)

Explanation:

The Great Acceleration refers to the humanity’s impact upon the Earth’s geology and its ecosystems caused by continual and surge in growth of human activity.

It was first recorded in mid-20th century and is continuing to this day. The 'invention of agriculture', advancement in medical technology which reduced the death rate, rapid increase in use of 'fossil fuels', 'fertilizers' and other resources contributed to global changes.

Agriculture allowed us to produce more food and population increased rapidly.

Fossil fuels created a surge in production of Green House Gases and global temperature began to rise.

4 0

3 years ago