Answer:
The activation of DNA synthesis may result from the stimulatory activity of one or more cytoplasmic factors and In fusions of cells in G2 and S, however, nuclei continue their previous activities,
Explanation:
Answer:
Yes.
Explanation:
The person and the cart are moving together, and being effected by the same kinetic and potential energy.
Answer:
D
Explanation:
<em>The correct option here would be</em><em> D</em><em>.</em>
The endomembrane system refers to a group of membrane-based organelles whose primary function is to synergistically work together to modify, package, and transport lipids and proteins. The system includes organelles such as the lysosome, the nuclear envelope, the endoplasmic reticulum, and the Golgi apparatus.
For an endomembrane system function involving a protein, the protein would first of all need to be synthesized by the ribosome - the free ones or the ones attached to the rough endoplasmic reticulum. Thereafter, the synthesized protein would then be folded or packaged into transportable vesicles. The vesicles are then received by the Golgi apparatus which further modifies the proteins before transporting them accordingly.
Hence, the correct order of a typical endomembrane system function would be:
- <em>Ribosomes on the RER synthesize proteins.</em>
- <em>Proteins are packaged into transport vesicles.</em>
- <em>Golgi apparatus receives transport vesicles from the RER.</em>
- <em>Proteins are modified by the Golgi apparatus.</em>
- <em>Modified proteins may be secreted from the cell by exocytosis.</em>
Meiosis is referred to as reduction division as it divides the chromosome number in half. Crossing over or recombination is the main reason of shuffled genes and increased genetic variation in gametes in meiotic cell division as the homologous pairs are paired up during prophase.
<h3>What is crossing over?</h3>
Crossing over is referred to as the exchange of genes of DNA between paired homologous chromosomes. It actually occurs during the development of egg and sperm cells i.e., during meiosis.
It is an enzyme-mediated step, in which the exchange of genetic material takes place between non-sister chromatids of homologous chromosomes.
It actually occurs at the pachytene stage of prophase I of meiosis cell division.
Thus, it can be concluded that the crossing over is the main reason of shuffled genes and increased genetic variation.
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The seahorse is found in many different locations around North and South America. They are typically located in the shallow tropical waters that are quite warm. They will be found living along the coral, the sea grass, and the mangroves. In Europe they are known to reside in the Thames estuary. Many of the larger species are living in the Mediterranean Sea.
Many species of seahorses are very territorial. The males often have about 11 square feet of territory. The females have up to 1,100 square feet. What they live though will influence how much area they have. In many regions that habitat range has gotten smaller and smaller.
In captivity the seahorses will be limited to a large aquarium. This can be a huge change in home range habitat for them. That is why the stress levels are very high and the survival rate low. Young in a captive state are more likely to do well because they haven’t become accustomed to the wide territory.
As a result the seahorses living in a given area have become more aggressive. They have also suffered from higher stress levels and more forms of disease. The aggressive behavior is typically when males are looking for females that they can mate with. It is also common when they are fighting for territory or food and that extends to both genders.
