1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
makvit [3.9K]
3 years ago
11

A drawing or diagram is an example of a(n) ____ model.​

Biology
1 answer:
cricket20 [7]3 years ago
3 0
Can you please add the picture of that model that which type of you want
You might be interested in
Why has acid rain become an international problem??
melomori [17]
Acid Rain is the problem threatening many of Europe's (most specifically Germany's) forests, lakes, and rivers. Acid rain travels via the wind and the acid pollutants can travel through this said wind to multiple countries. It was a large problem in the 1970's and 80's.
6 0
3 years ago
How does the insertion mutation affect the DNA?
gtnhenbr [62]
An insertion mutation occurs when an extra nucleotide is added to the DNA strand during replication. This can happen when the replicating strand "slips," or wrinkles, which allows the extra nucleotide to be incorporated (Figure 2). Strand slippage can also lead to deletion mutations. I’m not sure if this right but I tried
4 0
3 years ago
Can someone answer this please :)
IrinaK [193]
The answer will be for you U
7 0
3 years ago
Does drug legalization increase cases of addiction/drug abuse
andrey2020 [161]
No , it didn't increase cases of addiction.
4 0
3 years ago
Cystic fibrosis (CF) is one of most common recessive disorders among Caucasians it affects 1 in 1,700 newborns. What is the expe
Phantasy [73]

Answer: The expected frequency of carriers is P(Aa)=0.046.

The proportion of childs with CF is P(aa)=0.024.

25% of having a child with CF (aa).

Explanation:

Hardy-Weinberg's principle states that in a large enough population, in which mating occurs randomly and which is not subject to mutation, selection or migration, gene and genotype frequencies remain constant from one generation to the next one, once a state of equilibrium has been reached which in autosomal loci is reached after one generation. So, a population is said to be in balance when the alleles in polymorphic systems maintain their frequency in the population over generations.

Given the gene allele frequencies in the gene pool of a population, it is possible to calculate the expected frequencies of the progeny's genotypes and phenotypes. <u>If P = percentage of the allele A (dominant) and q = percentage of the allele a (recessive)</u>, the checkerboard method can be used to produce all possible random combinations of these gametes.

Note that p + q = 1, that is, the percentages of gametes A and a must equal 100% to include all gametes in the gene pool.

The genotypic frequencies added together should also equal 1 or 100%, and all the equations can be summarized as follows:

p+q=1\\(p+q)^{2}  = p^{2} +2pq+q^{2} = 1\\P(AA)=p^{2} \\P(aa)=q^{2} \\P(Aa)=2pq1

So, there are 1700 individuals and only one is affected. Since it is a recessive disorder, the genotype of that individual must be aa. So the genotypic frequency of aa is 1/1700=0.000588.

Then, P(aa)=q^{2}=0.000588. And with that we can calculate the value of q,

P(a)=q=\sqrt{0.000588}=0.024

And since we know that p+q=1, we can find out the value of p.

p+0.024=1\\1-0.024=p\\p=0.976

Next, we find out the genotypic frequency of the genotype AA:

P(A)=p=0.976\\P(AA)=p^{2} = 0.976^{2}=0.95

Now, we can find out the genotypic frequency of the genotype Aa:

P(Aa)=2pq=2 x 0.976 x 0.024 = 0.046

Notice than:

p^{2} + 2pq + q^{2} = 1\\x^{2} 0.976^{2} + 2 x 0.976 x 0.024 + 0.024^{2} = 1

Then, the expected frequency of carriers is P(Aa)=0.046

The proportion of childs with CF is P(aa)=0.024

If two parents are carriers, then their genotypes are Aa.

Gametes produced by them can only have one allele of the gene. So they can either produce A gametes, or a gametes.

In the punnett square, we can see that there genotypic ratio is 2:1:1 and the phenotypic ratio is 3:1. So, there is a probability of 25% of having an unaffected child, with both normal alleles (AA); 50% of having a carrier child (Aa) and 25% (0.25) of having a child with CF (aa).

5 0
3 years ago
Other questions:
  • Through the study of mitochondrial disorders, scientists have suggested a link between the decline of mitochondrial function and
    10·2 answers
  • A hypothetical bat species (species 1) lives in a city. Another hypothetical bat species (species 2) established a population in
    13·1 answer
  • What do you think of evolution
    5·1 answer
  • What do scientific models predict will happen to Earth's oceans if current trends continue unmitigated?
    6·2 answers
  • Match the term to its description dwarfs, giants, main sequence stars, super Giants A Did stars that shine with the last of the
    14·1 answer
  • What are the three parts of an ATP moleclue
    9·1 answer
  • he __________ system works with the nervous system to protect important organs such as the brain and spinal cord. A) skeletal B)
    6·2 answers
  • No wrong answers.
    7·1 answer
  • The diameter of the........... is so thin that only one red blood cell can get through at a time.
    8·1 answer
  • What is a benefit of using active solar energy over utility-scale solar energy for a home?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!