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
Romashka [77]
2 years ago
12

What is the SI unit of number of moles? Anyone there on ins*ta?

Biology
1 answer:
Marysya12 [62]2 years ago
6 0

Answer:

mol

Explanation:

The mole, symbol mol, is the SI unit of amount of substance

i think i already answered but i need points lol

You might be interested in
What does a pyramid of biomass represent ?
MArishka [77]

Answer:

Explanation:

i don't know but that sucks for you

7 0
3 years ago
Read 2 more answers
Name the following phases of the cell cycle. Note: The pictures are in no particular order.
natita [175]

Answer:

Explanation:

  1. Anaphase
  2. Interphase
  3. Metaphase
  4. Prophase
  5. Cytokinesis

In order, they would be 2, 4, 3, 1, 5.

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
Which process could cause a metamorphic rock to return to the surface of Earth to be worn down again? Please explain.
Ilya [14]
The answer would be c :)
3 0
3 years ago
Reactions that break apart large molecules are involved in which type of digestion?
antiseptic1488 [7]
They are involved in a chemical digestion. 
Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells. It begins in the mouth when food mixes with saliva which contains enzyme salivary amylase that breaks down carbohydrates. It also occurs in the stomach where HCl and pepsin forms chyme and small intestine especially in the duodenum.
4 0
3 years ago
Other questions:
  • Why is there controversy to the opinion that human contribution of carbon dioxide to the atmosphere is causing global warming?
    14·2 answers
  • Which of the following does not occur during mitosis? A centrometers B chromosomes replicate C spindles form
    5·1 answer
  • I need help with this biology
    10·1 answer
  • How and why are seeds dispersed?
    12·2 answers
  • U guys su.ck ive asked this like 10 times
    6·1 answer
  • In your own words, explain what happens in the water cycle
    8·2 answers
  • . What process is shown in the figure below?​
    6·1 answer
  • D) 6. In a marine ecosystem, small fish must be able to
    5·1 answer
  • What is the major determination of what animals and plants can live in an area?
    8·1 answer
  • Eukaryotes are __________________ and include __________________________.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!