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Alex73 [517]
2 years ago
11

This phylogenetic tree shows how scientists believe the Danes, Chinese, and Tibetans are related based on the analysis of many g

enes. Use the data about the EPAS1 alleles to add information to the tree. (Assume that there is no interbreeding between the different populations after the lineages split.) Labels can be used once or more than once.
Biology
1 answer:
Drupady [299]2 years ago
6 0

Answer:

Phylogenetic trees can be described as diagrams which represents the evolutionary histories of organisms. The organisms that share more common traits or functions are more closer to one another in the diagram.

The phylogenetic tree in the above diagram shows that the ancestors of Danes, Chinese and Tibetans carried the regular EPAS1 alleles.

According to the tree, the Chinese are more closer to the Tibetans as they carry the Tibetan EPAS1 alleles which the Danes do not carry.

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Redundant, or degenerate
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Inversion of DNA sequences within chromosomes is a common process in evolution. The following gene arrangements in a particular
Maksim231197 [3]

Answer:

The correct answer is "Fist sequence; Fourth sequence; Second sequence; Third sequence".

Explanation:

Inversion of DNA is a process that often occurs during evolution of chromosomes. It occurs when the breakage of a chromosome in two places, results in the reinsertion of a DNA but in a reversed fashion. The evolutionary order of predecessors of inversion of DNA can be established by looking on the number of nucleotides that are different in the sequences of DNA. In this case, the first sequence is the ancestor and it haves the sequence "ABCDEF". The second in the evolutionary order is the fourth sequence since it originates from the first sequence only by changing the "BC" nucleotides to the end of the sequence "ADEFBC". The third in the evolutionary order is the second sequence since it still starts in AB, but has the other four nucleotides different: "ABFEDC". The last in the evolutionary order is the third sequence, which is completely different and reversed respect to the first sequence: "FEDABC".

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2 years ago
Match each scenario to its related biomolecules. Jack is eating a diet that will help him build muscle, so he eats a diet high i
Stells [14]

The options for this question are as follows:

A. Nucleic acids

B. Carbohydrates

C. Fats

D. Proteins

Now the correct answers of the match are as follows:

Jack is eating a diet that will help him build muscle, so he eats a diet high in this. <u>D. Proteins</u>

Explanation: Proteins help to build up the muscles. That's why people who want to do body-building, eat protein rich foods, like chicken, eggs, soy, etc.

Before a race, Ruth drinks a beverage full of this biomolecule to get energy. <u>B. Carbohydrate </u>

Explanation: This biomolecule provides instant energy to our body. For example, glucose is consumed before race, as dissolves quickly in our blood and provides instant energy. Glucose is an example of simplest carbohydrate.

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Elizabeth has been advised to go for genetic screening to detect any abnormalities in her unborn child. <u>A. Nucleic acids </u>

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6 0
2 years ago
Which of the following correctly lists the levels of compaction in eukaryotes from naked DNA to the most compact?
nekit [7.7K]

Answer:

The level of compaction in Eukaryotes from naked DNA to the most compact is:

d. nucleosome, solenoid, looped chromatin (300-nm fiber), metaphase chromosome

Explanation:

As we know that the

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All of these facts depict that the the least compact is DNA and most compact is meta-phase chromosome.  

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2 years ago
In response to a body temperature above the set point, two effector responses in mammals could be _______ and _______.
loris [4]
<span>In response to a body temperature above the set point, two effector responses in mammals could be sweating and panting. 

</span><span>Negative feedback stimulate activities of effectors (including sweat glands) that lower the temperature.</span>
6 0
2 years ago
Read 2 more answers
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