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
Ket [755]
3 years ago
14

How do I find speed and acceleration step by step?

Biology
2 answers:
Luda [366]3 years ago
7 0

Answer:

Average speed is distance divided by time. Velocity is speed in a given direction. Acceleration is change in velocity divided by time.

Explanation:

slava [35]3 years ago
7 0
By Googling the correct formula for acceleration
You might be interested in
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
Consider the food chain of grass → grasshopper → mouse → snake → hawk. about how much of the chemical energy fixed by photosynth
Komok [63]
0.1%, use the 10% rule. 
5 0
3 years ago
1. Who most influenced Darwin's idea that life could change slowly over a long period of time? (1 point)
stiks02 [169]
<span>1) Malthus</span> Hutton influenced darwins idea
4) <span>4. Darwin concluded that if humans could influence an offspring's traits, so could nature.</span>

5 0
3 years ago
Read 2 more answers
are chromosome pairs, one from each parent, that are similar in length, gene position and centromere location
tatyana61 [14]

Answer:

This definition suits that of "HOMOLOGOUS CHROMOSOMES"

Explanation:

Homologous chromosomes are similar pairs of chromosomes i.e. in length, gene positioning and centromere location (one from each parent) but not identical. Homologous chromosomes are not identical in the sense that, alleles on each pair may be different, resulting in genetic variation of the offspring.

Using humans as a case study, a karyotype (pictorial display of chromosomal arrangement) shows the complete set of chromosomes, which has two complete set (diploid). Each human cell contain 23 pairs of chromosomes, with each pair contributed by each parent i.e. 46 chromosomes in total. Every chromosome pair represents a set of homologous chromosome.

6 0
3 years ago
Read 2 more answers
If each of the body (somatic) cells of a male animal contains 12 pairs of chromosomes (for a total of 24 chromosomes), how many
horrorfan [7]
Each sperm cells have a single chromosome
8 0
3 years ago
Other questions:
  • How does mantle convection cause seafloor spreading?
    14·1 answer
  • In which part of the human respiratory system does actual oxygen exchange take place?
    10·1 answer
  • What set of characteristics do living organisms such as birds, trees, and bacteria all have that distinguish them from nonliving
    10·1 answer
  • One organism benefits while the other is killed.
    11·2 answers
  • According to studies done by the Minnesota Pollution Control Agency, the lakes and streams across Minnesota are contaminated by
    8·2 answers
  • Conventionally pasteurized milk is sterile.<br> a. True<br> b. False
    12·1 answer
  • There are two different alleles for flower color, P and p. The image shows a purple sweet pea that is labeled with its two allel
    13·2 answers
  • Which landforms go into which category? Fan, Dunes, Rockfall, Sea caves, sea stack, sandbar Gravity Wind Wave Action - - - - - -
    14·1 answer
  • Please help! 10 points and brainliest!!
    8·1 answer
  • List body external and internal defenses
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!