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3 years ago

How are DNA and RNA different

Biology

2 answers:

Gnesinka [82]3 years ago

7 0

A few key differences:

DNA and RNA are abbreviations for deoxyribonucleic acid and ribonucleic acid respectively. This difference has to do with the fact that DNA contains a sugar called deoxyribose while RNA's sugar is simply ribose.
DNA has a double-helical structure while RNA is a single strand (resembling a single strand off a DNA's double helix). See the attached image for an illustration of this structure.
The bases of DNA are guanine, cytosine, adenine, and thymine. In RNA, by contrast, thymine is replaced by uracil.
Functionally, DNA is a kind of storage unit for genetic information. RNA uses this information to build proteins, copying it from the master copy contained in the DNA and converting it to a form the ribosomes can use.

(Image source: ThoughtCo)

Murrr4er [49]3 years ago

6 0

DNA contains information about ur genes.

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The constant, dynamic process of continual addition of new bone tissue (bone ____________ ) and removal of old bone tissue (bone

elixir [45]

Answer:

(Bone deposition),

(Bone resorption),

Remodeling

Periosteal ,

Nedosteal,

The compact bone,

Spongy bone.

Explanation:

The constant, dynamic process of continual addition of new bone tissue (bone deposition) and removal of old bone tissue (bone resorption) is a process called bone remodeling. This ongoing process occurs at both the periosteal (outer) and nedosteal (inner) surfaces of a bone.

It is estimated that about nedosteal of the adult human skeleton is replaced yearly. This process does not occur at the same rate everywhere in the skeleton. For example, the compact bone in our skeleton is replaced at a slower rate than the spongy bone.

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3 years ago

A mouse geneticist selected for increased 12-day litter weight (total weight of a litter of offspring 12 days after birth) in a

wlad13 [49]

Answer:

12-day litter weight is a trait that has an important genetic influence and therefore also a high response to selection

Explanation:

Heritability is a statistical measure of how much of the variation in a given trait can be attributed to genetic differences and how much of trait variation is due to environmental factors. A heritability value close to 1 indicates that almost all of the variability is due to genetic factors, while being poorly influenced by environmental factors. In this case, 12-day litter weight is a trait that exhibits an important genetic component (i.e., a high heritability value), thereby the correlation between parent and offspring will be high and lines selected for this trait will show a high response to selection.

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2 years ago

What type of selection is occurring because baby's with low or high birth rates are less likely to survive?

shepuryov [24]

Stabilizing selection

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2 years ago

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Scorpion4ik [409]

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2 years ago

What are dna composed of???

HACTEHA [7]

The two DNA strands are known as polynucleotides since they are composed of simpler units called nucleotides. Each nucleotide is composed of a nitrogen-containing nucleobase—either cytosine (C), guanine (G), adenine (A), or thymine (T)—as well as a sugar called deoxyribose and a phosphate group.

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2 years ago

Read 2 more answers