When two living organisms do something useful for each other

These are nucleotides that have a single ring structure. Example: Cytosine, Thymine, and Uracil

IgorLugansk [536]

Answer:

The question is incomplete.

However, I notice that your question is mainly dealing with

"Nucleotides with a single ring structure"

I tackled that part, also providing explanation to the point you focused on.

Explanation:

Nucleotides are compounds in which nitrogenous bases (purines and pyrimidines) are conjugated to the pentose sugars (ribose or deoxyribose) and at least one phosphate group. Thus a nucleotide consists of a nitrogenous base, pentose sugar and at least one phosphate group.

Examples of the nitrogenous bases are Adenine, Guanine, Thymine, Uracil and Cytosine. Of all, Thymine, Uracil and Cytosine are with single ring, while Adenine and Guanine are double ring structure.

8 0

3 years ago

Read 2 more answers

imagine that ou are stduying a very large population of moths that is isolate d from gene flow.A single gene controls wing color

algol [13]

About the question:

I failed to find the complete question. However, I will explain why this population is considered to be in Hardy-Weinberg equilibrium, and what the destiny of the alleles is.

Answer:

This population is in equilibrium because it accomplishes all the H-W assumptions for a population in equilibrium. Genetic nor allelic frequencies will change generation after generation. Alleles will remain equal.

Explanation:

Available data:

A single gene controls wing color
Half of the moths have white-spotted wings
half of the moths have plain brown wings
W allele is dominant and expresses white wings
w allele is recessive and expresses brown wings
Individuals mate randomly
No natural selection

We will know by theory if this population is or is not in equilibrium Hardy-Weinberg if the population is in concordance with the assumptions of the theory. So let us first analyze the Hardy-Weinberg assumptions for a population in equilibrium:

• Random matings: Any individual get crossed with any other individual

• No superposed generations: each individual can leave their gametes in the pool only once.

• No mutations: No mutations originate any new gametes.

• No migration: No incorporation of gametes from other populations.

• Infinite population size: the probabilities of randomly taking an A gamete from the pool are p, and the probability of taking a B gamete is q.

• No natural selection: Each individual has equal surviving and reproducing probabilities as any other, contributing proportionally to the gamete pool.

So, the exposed population

- is isolated, meaning that there is no gene flow from other populations. No new genes will be introduced.

- has no mutations, so no allele will change to express a new form

- individuals mate randomly

- there is no natural selection acting on this group as an evolutive force that might alter the equilibrium.

Genetic nor allelic frequencies will change generation after generation.

In a Hardy-Weinberg population, where allelic frequencies are p and q (assuming a diallelic gene), genotypic frequencies after one generation of random matings are p², 2pq and q². The allelic frequencies, as well as the genotypic frequencies, remain equal after successive generations. Alleles will remain in the population from many generations.

5 0

3 years ago

What is the raw material for natural selection?

motikmotik

Mutations I do believe

5 0

4 years ago

How is climate change effecting the great barrier reef?

Rama09 [41]

Its a mix of multiple things! coral bleaching and human impact, the plans for development on the area and the higher tourist rates, theres also a mining plan in which will negatively impact it as the mine will be placed on the outskirts of the great barrier reef, therefore the emissions from the coal mine will waft up in to the ocean affecting the micro organisms and other life within.

6 0

3 years ago

Read 2 more answers

A patient's mammogram is reviewed and the radiologist reports a normal exam. Six months later, the patient finds a lump in her b

julsineya [31]

Answer:

General compensatory

Explanation:

Damages are a remedy in the form of a monetary award to be paid to a claimant as compensation for loss or injury. To warrant the award, the claimant must show that a breach of duty has caused foreseeable loss. To be recognised at law, the loss must involve damage to property, or mental or physical injury; pure economic loss is rarely recognised for the award of damages.

Compensatory damages are grouped into special damages: which are economic losses such as loss of earnings, property damage and medical expenses, and general damages: which are non-economic damages such as pain and suffering and emotional distress. Our ordeal here falls under the General Damage

General damages compensate the claimant for the non-monetary aspects of the specific harm suffered. This is usually termed 'pain, suffering and loss of amenity'.

3 0

4 years ago