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Damm [24]
3 years ago
15

The xx chromosome type is found in__​

Biology
1 answer:
densk [106]3 years ago
7 0

Answer:

females \:  \:  \:  \:  \:  \\ it \: is \: your \: right \: answer \:

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According to the phylogenetic tree, which domains are more genetically related?
quester [9]

Answer: The correct answer is- Archaea and Eukarya.

As per the information about the (phylogenetic tree) given in the question,

the last branch of the phylogenetic tree begins with the line of Eukarya and then holds the species of the Archaea division, which includes those prokaryotic organisms that live in extremely harsh environmental conditions ( such as Methanobacterium, and extreme halophiles).  

As this last branch holds species of two domains ( from 3 domain system of classification that includes Bacteria, Archaea, and Eukarya) , which are Archaea and Eukarya as it begins with Eukarya and later on holds the species of Archaea.

Thus, it shows that Archaea and Eukarya are more genetically related.

3 0
3 years ago
You have identified a previously unknown human gene that appears to have a role in autism. It is similar enough in DNA sequence
nexus9112 [7]

Answer:

Amino acid sequences

Explanation:

The proteins perform the vast majority of functions in the cells. If a gene between a human and a mouse is evolutionarily related, it means that the function they do in the cell is quite similar in both species. This is the reason why the amino acid sequence would be the most similar.

In addition, there might be certain mutations in the DNA and therefore in the RNA between this 2 sequences that encode to the same amino acid sequence. More specifically speaking, there are more than one codon that encode to the same aminoacid. Thus, 2 different DNA/RNA sequence can give the same aminoacid sequence.

3 0
3 years ago
Need Help). Question 1): Photosynthesis and cellular respiration are often described in two ways: 1) they are chemically opposit
Zinaida [17]

Answer:

too long don't wanna read all of it

Explanation:

plus cod vanguards just came out going to play that game 24/7

7 0
3 years ago
Natural selection is based on the idea that as an environment changes, an individual's genetic makeup will change suddenly to su
Schach [20]
No. The natural selection is when the best suit fits survive. Therefore is not the idea that as an environment changes.
7 0
3 years ago
QUESTION 1
nata0808 [166]

Answer:

According to the sliding-filament model of contraction, the muscle contraction occur due to the myosin heads propel the actin myofilaments toward the center of the sarcomere. This pulls the Z disks closer together, shortening  sarcomere and the entire muscle

Explanation:

In the muscle fiber there are two proteins that facilitate the process of contraction, myosin and actin. Myosin is thicker and more abundant than actin, and its interaction is responsible for the process of muscle contraction.

Both molecules, myosin and actin, form bonds -called cross bridges- where the myosin heads produce the mobilization of actin towards the center of the sarcomere. Z discs are associated with actin myofibrils, so they come close, and promote the shortening of the sarcomere.

This process requires the action of calcium ions, which depolarize the muscle cell and consume energy in the form of ATP.

It should be noted that the myosin and actin molecules do not change their length, but their action causes the muscle fibers to shorten during contraction.

Learn more:

Types of muscle contraction brainly.com/question/7117064

7 0
3 years ago
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