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kap26 [50]
4 years ago
14

How can DNA be useful in phylogeny?

Biology
2 answers:
Genrish500 [490]4 years ago
8 0

Answer:

Option C, DNA sequences from different species can be compared, giving us more information about their evolutionary relationships

Explanation:

Phylogeny is the study of evolution of species since ages and  also working out inter species evolutionary relationship.

In molecular phylogeny the DNA and its structure is very essential to work out the evolution of species.  

The information about the structural arrangement of genome, genetic mutation, difference in the nucleotide sequence etc, helps to establish a common ancestry relationship between two or more individual.  

Since all the genetic information is carried by DNA, thus assessment of DNA helps to identify the common thread of evolution  and in this way DNA is useful in phylogeny.

mash [69]4 years ago
7 0

Answer:

Option A is correct

......

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A child who says, “Give cookie,” rather than “Will you give me a cookie?” is demonstrating __________.
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Answer:

B. telegraphic speech

Explanation:

its b. because who ever is speaking is not speaking in complete sentences they are speaking in sections, like they are missing words which makes it telegraphic.

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3 years ago
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Suppose a population is carrying a condition controlled by two alleles: P (dominant) and p (recessive). Only homozygous individu
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<span>The answer is B. 72.25 percent.

The Hardy-Weinberg principle can be used:</span>

<em>p² + 2pq + q² = 1 </em>and <em>p + q = 1</em>

where <em>p</em> and <em>q</em> are the frequencies of the alleles, and <em>p²</em>, <em>q²</em> and <em>2pq</em> are the frequencies of the genotypes.

<span>The <em>p</em> allele (<em>q</em>) is found in 15% of the population:
q = 15% = 15/100
Thus, q = </span><span>0.15

To calculate the <em>P</em> allele frequency (<em>p</em>), the formula <em>p + q = 1</em> can be used:
If p + q = 1, then p = 1 - q
p = 1 - 0.15
Thus, </span><span>p = 0.85

Knowing the frequency of the <em>P</em> allele (<em>p</em>), it is easy to determine the frequency of the <em>PP </em>genotype (<em>p²</em>):
p² = 0.85² = 0.7225

Expressed in percentage, p² = 72.25%.</span>

7 0
3 years ago
Review the concept map and then click on all the true statements below
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Do you have a picture of the map? : )

3 0
3 years ago
How do mutations cause variation?
Fofino [41]

Answer:

Mutations can create entirely new alleles in a population which changes the allele frequencies of a gene pool.

5 0
3 years ago
A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with ba
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Answer:

C. Atoms lose energy as a gas changes to a solid.

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Physical changes of matter take place by adding or removing energy from the matter.

In the given images, The<em> left cylindrical is showing gas phase while the right cylindrical is showing a solid phase.</em>

The process of conversion of gas into solid is called deposition. Deposition process takes place when atoms lose their energy and have high kinetic energy so they directly convert into solid and not into liquid.

Hence, the correct option is "C".

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3 years ago
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