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QveST [7]
3 years ago
8

An instructor says that this disease has been nearly eradicated in developed countries. which disease is probably being discusse

d?
Biology
1 answer:
lawyer [7]3 years ago
6 0

Nowadays, different countries are constantly emerging and expanding their liabilities which may include the field of medicine. The disease that is being discussed by the instructor that is considered nearly eradicated is probably the measles. This disease is caused by Paramyxovirus which is a major respiratory pathogen among infants and young children. Measles is also known as “rubeola virus”, an acute, highly respiratory symptoms and a maculopapular rash that affects the mouth, head, body and extremities. It begins with the appearance of Koplik spots which may end up to some complications like symptomatic encephalitis and subacute sclerosing panencephalitis(SSPE). In order to prevent this type of disease MMR(Measles, Mumps & Rubella) Vaccine is needed. According to some of the reports, it is still common to some of the countries, but WHO campaigns to eradicate the disease worldwide by the year 2020.

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Anyone know the answer ?
horrorfan [7]

Answer:

advantages of sexual reproduction:

it produces variation in the offspring

the species can adapt to new environments due to variation, which gives them a survival advantage

a disease is less likely to affect all the individuals in a population

disadvantages of sexual reproduction:

time and energy are needed to find a mate

it is not possible for an isolated individual

advantages of asexual reproduction

the population can increase rapidly when the conditions are favourable

only one parent is needed

it is more time and energy efficient as you don't need a mate

Disadvantages of asexual reproduction

it does not lead to variation in a population

the species may only be suited to one habitat

disease may affect all the individuals in a population

Explanation:

6 0
3 years ago
100 POINTS IF CORRECT!!!
Yuliya22 [10]

From a Punnett square you can get the genotypic and phenotypic proportions of the progeny produced from a cross. Cross: PpRr x PpRr. F1: PPRR, PPRr, PPRr, PPrr, PpRr,  Pprr, ppRR,  ppRr, pprr.

<h3>What is a Punnett square?</h3>

The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.

Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.

In the exposed example, we know that two genes are involved in the cross.

As we can see, there are dominant and recessive alleles for both genes.

Since each genotype in the square results from the combination of parental gametes, we can figure out which are the parental genotypes.

For instance, let us consider the provided genotypes

  • PPRr.

We can assume one of the parents provided a P and a R dominant alleles, while the other parent provided another P allele but a r recessive allele.

PR + Pr ⇒ PPRr

  • ppRr.

One of the parents provided a p recessive allele and a R dominant allele, The other parent provided another p allele and a r recessive allele.

pR + pr ⇒ ppRr

  • pprr.

Both parents provided p and r recessive alleles.

pr + pr ⇒ pprr

From this information, we can assume parents are heterozygous for both genes.

Cross:

Parentals)        PpRr        x      PpRr

Gametes) PR, Pr, pR, pr     PR, Pr, pR, pr

Punnett square)    PR           Pr          pR         pr

                   PR     PPRR     PPRr      PpRR     PpRr

                   Pr      PPRr      PPrr       PpRr      Pprr

                   pR     PpRR     PpRr      ppRR     ppRr

                   pr      PpRr      Pprr       ppRr      pprr

F1) 1/16 individuals are expected to be PPRR

   2/16 individuals are epected to be PPRr

   1/16 individuals are expected to be PPrr

   2/16 individuals are expected to be PpRR

   4/16 individuals are expected to be PpRr

   2/16 individuals are expected to be Pprr

    1/16 individuals are expected to be ppRR

    2/16 individuals are expected to be ppRr

    1/16 individuals are expected to be pprr

For a better understanding, you will find the Punnett square in the attached files representing the parental gametes with different colors, and the resulting genotypes with a combination of these colors.

In this way, you will notice which gamete comes from which parent.

You can learn more about Punnett squares at

brainly.com/question/25357981

#SPJ1

5 0
1 year ago
A certain species of seed-eating bird lives on a remote island. Many young have recently been born with shorter beaks that can c
fredd [130]

Answer:

C)

Explanation:

The beaks are in direct correlation with the type of or amount of food they are consuming.

4 0
3 years ago
Mendel observed that dominant traits
zalisa [80]
Are recessive genes like a dominant gene will all ways be a characteristic of the cell DNA
5 0
3 years ago
You have just received your flu vaccine in your deltoid muscle. Explain all of the layers and structures the needle passed throu
SashulF [63]

The layers and structures the needle passed through are- epidermis, dermis, subcutaneous layer or hypodermis, connective tissue layer and muscle.

The epidermis is the outermost layer of the three layers that make up the skin, the inner layers being the dermis and hypodermis. The connective tissues connects, binds and separates other tissues or organs. Muscles are soft tissues found in the body. They function to produce force and motion.

5 0
3 years ago
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