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lara [203]
3 years ago
9

How are vestigial structures an example of evidence of evolution

Biology
1 answer:
Tcecarenko [31]3 years ago
7 0
I believe vestigial structures are evidence of evolution because organisms inherit anatomy from their ancestors. 

Hope that helps.
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HELP ME!! 20 POINTS!!<br> The main source of energy for our planet comes from the _______.
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it comes from the sun.

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Which issue is a negative effect of cell technology on society? Immortal animal cell lines can be used to model human cells. The
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<span>The use of human cells in research can lead to ethical problems

Because the new use of cells most often lead to this "grey area" in ethics as it is a new area of science and our society is not yet conditioned to this scientific breakthough. As there is no "moral code" on human cell use, ethical objections can arise and led to conflicts.
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When looking at the other options they do not cause negative effects on society

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3 years ago
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Which number sentences is true 0.35&gt;0.36 0.3 &lt;0.04 0.3&gt;0.20 0.75&lt;0.7
Reika [66]
The third one is true. 0.3 > 0.20
4 0
3 years ago
In pea plants, yellow seed color (Y) is dominant and green seed color (y) is recessive. Based on the Punnett squares, what are t
dsp73

YY

Yy

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There would be a 25% chance.

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3 years ago
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Consider the pedigree below. The circles represent females and the boxes, males. White color indicates a normal phenotype while
Natalija [7]

Hello. You forgot to show the pedigree image of that family. It is important that you always provide all the necessary information so that it is possible to answer your question the way you deserve.

The required image is attached below:

Answer:

  1. Generation 1: cc - CC
  2. Generation 2: Cc-Cc-Cc - CC
  3. Generation 3: Cc - Cc - cc
  4. Generation 4: cc - CC - cc - CC

Explanation:

As seen in the question above, dark colored circles or squares develop the cystic fibrosis disorder that is represented by the recessive "c" allele. While light colored circles and quads did not develop the disorder, but can carry the gene, if they present the heterozygous allele pair "Cc".

As we know, homozygous alleles are only phenotypically expressed if they are homozygous, that is, if they present the "cc" pair.

Thus, we can say that in the family shown in the figure below, generation 1 presents a person with the "cc" alleles and another with the "CC" alleles. The interbreeding between these two people, will generate an offspring totally "Cc", that although it has the gene responsible for the disorder, they will not present the disease because they are heterozygous.

According to the result of Generation 3, we can assume that a member of generation 2 (who possessed the Cc alleles) had a cross with an individual with the "CC 'alleles thus generating, generation 3, with two individuals of" Cc alleles. "or an individual from the" CC "allele and one from the" Cc "allele.

The generation 3 individual with the "Cc" allele also crossed with a "Cc" individual. As each member of the offspring receives an allele from each parent this cross would be:

Cc * Cc = CC - Cc- Cc - cc

Based on this, we can say that each member of the offspring would have a 25% chance of presenting the disease. As we can see in the figure below, two members of this offspring have inherited the "cc" alleles and have the disease.

3 0
3 years ago
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