Complete question:
The Hardy-Weinberg equilibrium is a theoretical model that predicts the frequency of different genotypes in a population that is not evolving. A scientist studying the population genetics of the rainbow fish finds that the Hardy-Weinberg model predicts that the frequencies of the three different genotypes for the albino gene in a given lake should be as follow: AA: 49%, Aa: 42%, and aa: 9%. However, the scientist obtained a sample of 320 individuals of this species and found that the numbers of individuals for the different genotypes are: AA: 180, Aa: 120, and aa: 20. Use the appropriate statistical technique to test (use alpha = 0.05) whether the observed genotype frequencies are consistent with eh Hardy-Weinberg model. State your conclusion.
Answer:
There is enough evidence to reject the null hypothesis. The genotypes are not in equilibrium. The genotype frequencies are consistent with the Hardy-Weinberg model.
Explanation:
Expected Number of individuals with each genotype: Each genotype´s frequency multiplied by the total number of individuals in the sample.
AA= 0.49 x 320 = 156.8
Aa= 0.42 x 320 = 134.4
aa= 0.09 x 320 = 28.8
Observed Number of individuals with each genotype:
AA= 180
Aa= 120
aa= 20
Chi square= ∑ ((O-E)²/E)
- ∑ is the sum of the terms
- O are the Observed individuals
- E are the Expected individuals
AA= (O-E)² /E
AA= (156.8 - 180) ² / 156.8
AA= 538.24/156.8
AA= 3.433
Aa= (O-E)² /E
Aa= (134.4-120)² / 134.4
Aa=207.36/134.4
Aa= 1.543
aa= (O-E)² /E
aa= (28.8-20)²/28.8
aa= 2.69
X² = ∑ ((O-E)²/E) = 3.433 + 1.543 + 2.69 = 7.666
Freedom degrees = genotypes - alleles = 3 - 2 = 1
Significance level, 5% = 0.05
p value less than 0.05
Table value/Critical value = 3.841
7.666 > 3.84 meaning that the difference between the observed individuals and the expected individuals in each chamber is statistically significant.
There is enough evidence to reject the null hypothesis. The genotypes are not in equilibrium.
Answer:
Explanation:
Los períodos irregulares pueden tener varias causas, desde desequilibrios hormonales hasta afecciones subyacentes, y tu médico debe evaluarlos.
Answer:
Option B
Explanation:
The region around the forty degrees of north of earth is affected by the air that gets deflected due to the rotation of earth.
Primarily there are 5 wind zones of earth-
a) polar easterlies – Start blowing from the east towards the north and south pole
b) westerlies – Start blowing from west at midlatitude. For instance Roaring Forties blow in the region of 40 to 50 degrees from the southern hemisphere.
c) horse latitudes – It narrow zone between westerlies and the trade winds about 30 and 35 degrees north and south.
d) trade winds - blow from the east across the tropics
e) doldrums - trade winds of the two hemispheres meet at a common region which is known as doldrums. Hot air from equator rises and move towards the north and south
Hence, option B is correct
Answer:
Taller than average stature.
Longer legs, shorter torso and broader hips compared with other boys.
Absent, delayed or incomplete puberty.
After puberty, less muscle and less facial and body hair compared with other teens.
Small, firm testicles.
Small penis.
Enlarged breast tissue (gynecomastia)
Explanation:
is the area of the brain that adjust other motor output and also centers in the CNS.<span>Cerebellum is the part in your brain the the receives any information that is from the sensory system.It coordinates any voluntary movement such as the balance and also the posture. 