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
Ksenya-84 [330]
2 years ago
11

Short Story

Biology
1 answer:
arlik [135]2 years ago
7 0

Answer:

and the other questions you have the arm to

You might be interested in
Which of the following is not true concerning tropical plantations?
Lemur [1.5K]

Answer:

Wheat and corn are common products of tropical plantations.

7 0
3 years ago
Read 2 more answers
What is a open system ?
denpristay [2]

Answer:

An open system is a system that has external interactions. Such interactions can take the form of information, energy, or material transfers into or out of the system boundary, depending on the discipline which defines the concept

Explanation:

7 0
3 years ago
Read 2 more answers
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
TO INVESTIGATE AND COMPARE THE MOVEMENT OF TWO NAMED JOINTS IN THE HUMAN BODY
WINSTONCH [101]

Answer:

tendons and knees

Explanation:

the tendons are in the fingers, and they move to allow various actions such as holding things. the knees, allow us to walk, and join the forelegs and legs. their movement is different and they allow various actions, however, both are important.

8 0
3 years ago
What makes up for an ideal cell?
SVEN [57.7K]

Answer:

Ideal cell is defined to be the cell will zero internal resistance.

4 0
2 years ago
Other questions:
  • Which of the following is not required for osmosis to occur?
    14·1 answer
  • How many chromatids <br> are in twenty duplicated chromosomes
    14·2 answers
  • The essential nutrients Multiple Choice
    5·1 answer
  • I need help with Biochemistry Action Nutrition Facts
    11·1 answer
  • Mitosis is a form of _____ reproduction that produces 2 _____ daughter cells.
    8·2 answers
  • I need help with my homework pleaseee
    8·1 answer
  • FWhat are components Of RNA​
    8·2 answers
  • ASI
    10·1 answer
  • What do you predict would happen if hydrogen bonds formed between any two nitrogenous bases in DNA ?
    15·1 answer
  • How many millimetres (equivalent depth) of water are
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!