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Free_Kalibri [48]
2 years ago
13

Which of the following is an example of convenience sampling?

Biology
2 answers:
Harlamova29_29 [7]2 years ago
7 0
Obviously is B ! :,D
lara31 [8.8K]2 years ago
5 0

The correct answer is option B, that is, a dentist surveying patients about toothpaste preference.  

Convenience sampling refers to the non-probability technique of sampling where the subjects are chosen due to their suitable availability and propinquity to the researcher. This type of sampling method is dependent upon the collection of data from the members of the population who are conveniently accessible to take part in the study.


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In corn, the allele A allows the deposition of anthocyanin (blue) pigment in the kernels (seeds), while aa plants have yellow ke
lara31 [8.8K]

Answer:

<h2>A) Yes, 12 mu</h2><h2>B) AaWw</h2><h2>C) 0.25%</h2><h2 />

Explanation:

As given,

Allele A for  blue anthocynin.

aa for yellow kernel;

at  second locus;

W produce smooth kernel,

ww for wrinkled kernel;

Parents as given are:  AaWw and aaww

Progeny are:

blue smooth ( AaWw)= 1447;

blue wrinkle (Aaww)= 169;

yellow smooth (aaWw)= 186;

yellow wirnked (aaww)= 1510

a)

Recombinant progeny are  169+ 186= 355

non- recombinant progeny are = 1447+ 1510= 2957

so recombination frequency (RF)= 346/2957×100= 12.0054%

So a and w are linked genes.

They are 12 mu far away from each other.

b) Blue smooth parent= AaWw.

c) Aaww crossed with  aaWw

progeny are= AaWw, Aaww, aaWw, aaww,

They all are produced in same proportion =0.25% or 1/4.

5 0
2 years ago
Glycolysis requires an input of energy. What molecule provides this energy?
Afina-wow [57]

Answer:

Glycolysis is actually a series of ten chemical reactions that requires the input of two ATP molecules. This input is used to generate four new ATP molecules, which means that glycolysis results in a net gain of two ATPs.

Explanation:

hope it helps

8 0
2 years ago
What is
Alinara [238K]

Answer:

"the act of placing multiple text elements side by side to compare them"

Explanation:

the definition of juxtaposition is "the fact of two things being seen or placed close together with contrasting effect."

7 0
1 year ago
What does medics go specifically need/identify from the virus in order to make the vaccine?
baherus [9]

Answer:

Explanation:what do you mean?

5 0
2 years ago
Suppose there are two genes on two different chromosomes, one gene called G and the other called D. An individual has the genoty
Ronch [10]

Answer:

as the question does not contains image i have  already mentioned the link to image in ask for detail section therefore i will answer according to that image.

the answer is "B"

Explanation:

Because before crossing over but after duplication both chromosomes will have same alleles as GgDd therefore according to the image the answer will be option "B". as this option showed duplicated chromosomes.

7 0
3 years ago
Read 2 more answers
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