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Nikolay [14]
3 years ago
12

What suggests that all the mammals alive today came from the same common ancestor.

Biology
1 answer:
4vir4ik [10]3 years ago
8 0
Homologous structures such as bone structure of the arm shows similarities between all mammals
Hope this heprd
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A very important feature of the ehr navigator is the ability to send prescriptions electronically to pharmacies. this feature is
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The feature is known as e-prescribing, or commonly referred to as electronic prescribing.  E-prescribing, or electronic prescribing is a machinery agenda that lets doctors and other therapeutic consultants to transcribe and conduct prescriptions to a partaking drugstore by electronic means as a substitute of using handwritten, transmitted notes or calling in prescriptions.

4 0
3 years ago
Suppose 64 percent of people living in a remote, isolated mountain village can taste phenylthiocarbamide (PTC) and must, therefo
worty [1.4K]

Answer:

The percentage of the population that is heterozygous for this trait is 48%

Explanation:

They are two alleles, the phenylthiocarbamide tasters (PTC) and the non phenylthiocarbamide tasters (non PTC). PTC testers are dominant and non PTC tasters are recessive.

let the frequency of the dominant allele(A) be p

and the frequency of the recessive allele(a) be q

We are told that 64 percent of people living in a remote, isolated mountain village can taste phenylthiocarbamide (PTC) and must, therefore, have at least one copy of the dominant PTC taster allele (that is AA and Aa)

Frequency of AA = p², Frequency of Aa = 2pq and Frequency of aa = q²

Therefore p² + 2pq = 64% = 0.64

According to Hardy–Weinberg:

p² + 2pq + q² = 1 and

p + q = 1

Since p² + 2pq = 0.64

∴ 0.64 + q² = 1

q² = 1 - 0.64 = 0.36

q = √0.36 = 0.6

Since p + q = 1

p = 1 - q = 1 - 0.6 = 0.4

The frequency of heterozygous = 2pq = 2 × 0.4 × 0.6 = 0.48

Therefore the percentage of the population that is heterozygous for this trait is 48%

8 0
3 years ago
Which is the proper order of structures that contact the substances removed from the blood?
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Option 3

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A drug company is testing the effectiveness of a new blood pressure medication using two differ groups of rats as test subjects
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Cellular Respiration occurs in a membrane bound organelle inside of a cell. What is the name of this organelle? State an analogy
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