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maw [93]
3 years ago
13

What is the main difference between a cladogram and a phylogenetic tree?

Biology
1 answer:
kow [346]3 years ago
8 0
Both phylogenetic trees and cladograms help show the relationships between different organisms, but only phylogenetic trees have branches that represent evolutionary time and amount of change. These were formerly based on physical characteristics, but are more accurately based on genetic relationships.
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If a DNA molecule is found to be composed of 35% thymine, what percentage of cytosine would be expected, and why?
-Dominant- [34]
We use Chargaff's rule to get the answer. [A] + [G] = [C]+ [T].    [A] + [G] + [C] + [T] = 100% Where is A is Adenine, G is Gaunine, T is Thymine and C is Cytosine. In DNA, Adenine always pairs with Thymine, and Guanine always pairs with Cytosine. Therefore if Thymine is 35%, then Adenine will also be 35% to make 70% in total. The remaining percentage will be 100% - 70% = 30%. The 30% will be shared equally among Cytosine and Guanine, at 15% each. Therefore Cytosine will be 15% 
4 0
3 years ago
After a client is treated for a spinal cord injury, the healthcare provider informs the family that the client is a paraplegic.
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After a client is treated for a spinal cord injury the health care provider informs the family that the client is a paraplegic. Given the situation the nurse is expected to provide an explanation to the family without using jargon words. Paraplegic is known to be a condition where a patient’s lower extremities are paralyzed.

5 0
3 years ago
describe a situation in nature where genetic drift might be a more important influence on evolution than natural selection.
inna [77]

Answer:

Example of genetic drift

Explanation:

a population of rabbits with alleles B and b, both alleles are present in equal frequencies p = 0.5 and q = 0.5 if 10 parents reproduce the probability of having an offspring with alleles B or b is 0.5; however, by chance, a slight difference in the offspring allele frequency might occur due ...

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A research laboratory uses a cancer cell line that has undergone thousands of cell cycle divisions in the laboratory without any
natta225 [31]
The answer is:  [B]:  "Very low levels of telomerase."
________________________________________________________

<span>     The cancer cell line is therefore likely to express <u>  very low levels of telomerase </u><u /> .
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The correct answer is false
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4 years ago
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