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ValentinkaMS [17]
3 years ago
11

Which of the following would be considered a qualitative observation?

Biology
1 answer:
Rashid [163]3 years ago
5 0
C. The weight of dairy cows fed different grass is deteriorating would be considered a qualitative observation. I hope this helps!
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What are the reactants in the following chemical formula? <br> C6H12O6 + 6O2 → 6CO2 + 6H2O
Luda [366]
That is the chemical formula for photosynthesis
8 0
3 years ago
A researcher is studying a newly discovered gene that causes increased body weight in domesticated chickens. In a mainland popul
Dima020 [189]

Answer:

0.382

Explanation:

In solving this, let's recall the Hardy-Weinberge's equations which are as follows: p + q = 1; p^{2} + 2pq + q^{2} = 1 , where p represents the dominant Allele, while q represents the recessive allele. In applying this to what we want to calculate, p^{2} = A1A1, 2pq = A1A2, and q^{2} = A2A2.

Using the Hardy-Weinberge's equations, we can determine the number of individuals having the different types of genotype inherent in the 100 mainland chicken that was transported.

Since p + q = 1, i.e. given that allele frequency of A1 is 0.2, therefore allele frequency for A2 = 0.8 (p + q = 1).

Using  p^{2} + 2pq + q^{2} = 1, we would have the following:

p^{2} = A1A1 = 0.2^{2}  = 0.04

2pq = A1A2 = 2(0.2*0.8) = 0.32

qx^{2} = A2A2 = 0.8^{2} = 0.64

Therefore, number of mainland chickens with the A1A1 genotype = 0.04*100 = 4; A1A2 = 0.32*100 = 32; A2A2 =0.64*100 = 64

The genotype frequencies for the admixed population would be the sum of that of the transported mainland chicken and that of the isolated chicken, which would be:

Genotype       mainland      isolated      Total    No of A1 allele present

A1A1                      4                200           204                204

A1A2                     32              400           432                216

A2A2                    64              400           464                  0

Total                                                         1100                420

Therefore, allele frequency of the A1 allele in the admixed population = 420/1100 = 0.382

4 0
3 years ago
If there are 400 dark moths in a population of 1200 and 800 light moths, what are the frequencies of each trait?
zheka24 [161]
The dark moth frequency is 1/3 and light moths are 2/3. you can conclude that light moths are twice more common then dark moths.
8 0
3 years ago
What is a limiting factor and how can limiting factors limit the size of a
Rudiy27

Answer:

A. A resource that is so scarce (in restricted quantity) that it limits the size of a population is called a limiting factor. Any single resource can be a limiting factor to a population size. For example, the amount of water available can affect the number of plants that can grow in an area.

4 0
3 years ago
Please help thank you
Ierofanga [76]
The answer is A because it is the most explainable answer. 
4 0
3 years ago
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