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topjm [15]
3 years ago
7

Mutations in a gene occur at a rate of one nucleotide every 10 million years. The gene sequence differs by 6 nucleotides between

two related organisms. How long ago did these organisms split from a common ancestor
Biology
1 answer:
ikadub [295]3 years ago
6 0

Answer:

Total time split from a common ancestor = 30 million

Explanation:

Given:

Number of nucleotide = 6

Number of organism = 2

Rate one nucleotide = 10 million year

Computation:

Total time split from a common ancestor = [Rate one nucleotide / Number of organism]Number of nucleotide

Total time split from a common ancestor = [10 million / 2] 6

Total time split from a common ancestor = [5 million] 6

Total time split from a common ancestor = 30 million

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yawa3891 [41]

Answer:

T/ T genotype

Explanation:

To know which genotype appears to be associated with a higher prevalence of heart disease, you must know which genotype appeared in the highest percentage in the population tested.

For this, we will do the following calculations.

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200 people = 100%

20 people = X

X = (20 * 100) / 200

X = 10%

This means that the C/C genotype appeared in 10% of the tested population.

Now we must to know the percentage of the T / T genotype, we must consider 200 of the 250 people tested.

  • T/T Genotype:

250 people = 100%

200 people = x

X = (200 * 100) / 250

X = 80%

----

200 people = 80%

30 people = X

X = (30 * 80) / 200

X = 12%

Thus, we can say that the T / T genotype appeared in a higher percentage within the tested population, being considered the genotype that seems to be associated with a higher prevalence of heart disease.

3 0
3 years ago
Which is not caused by bacteria?
IrinaVladis [17]
<span>Ringworm is a fungus.</span>
6 0
3 years ago
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Which of the following is not a function performed by a membrane protein?
Reptile [31]

Enzyme synthesis cannot be a function performed by a membrane protein.

<u>Explanation:</u>  

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4 0
3 years ago
The gene D controls wing shape in flies and has two alleles: D is wild-type and dominant, and d is recessive and causes flies to
borishaifa [10]

Answer:

10% of progeny would have wild type phenotype

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True breeding fly with wild type wings and small eyes: De/De

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Cross between them :  De/De X dE/dE = De/dE ( F1 )

Recombination frequency = 20%

Next cross, De/dE X de/de =

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dE/de = parental = 40%

DE/de = recombinant = 10%

de/de = recombinant = 10%

The third genotype i.e. one of the recombinant genotypes will have the wild type makeup ( DE/de ) hence 10% of flies would have wild type phenotype.

8 0
2 years ago
Proteins and carbohydrates have many functions in the body of an organism. Specific proteins and carbohydrates perform specific
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Answer:

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hope it helps..

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