I believe the answer is B.
It is true. In drosophila, distinct sets of maternal impact gene products must accumulate in the proper region of the embryo to ensure proper anteroposterior and dorsoventral development.
<h3>What makes Drosophila unique?</h3>
The use of Drosophila over vertebrate models has many technological advantages;
- they are simple and affordable to culture in lab settings,
- have a significantly shorter life cycle,
- produce huge numbers of externally deposited embryos
- may be genetically manipulated in a variety of ways.
<h3>Why is Drosophila referred to be the genetic Cinderella?</h3>
- Drosophila, which means "dew loving," is derived from the Greek word drósos.
- Fruit flies, or Drosophila melanogaster, are referred to as the genetic Cinderella.
- This term was given to them because of their 12-day lifetime, ease of culture, and ability to produce numerous offspring from a single reproduction.
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Answer:
The nektonic organisms are those marine organisms that are found in almost every depth. These can move freely from one place to another in the ocean body due to its ability to swim. For example, Turtles, sharks, Fishes, and dolphins.
The planktonic organisms are passive swimmers, as they can move along with the ocean currents and are mostly found in the upper portion of the ocean body. For example, Diatoms and Rotifers.
The benthos is the bottom-dwelling organisms that cannot swim. For example, Bivalves, Corals and Sponges.
The nektonic organisms are different from the planktons and the benthos because the nektons can easily swim. They are constructed with such body parts that allow them to swim and migrate from one region to another region within the ocean water body. Whereas the planktons and the benthos cannot migrate easily and are considered as sessile organisms.
Answer:
In order to ascertain the total magnification when viewing an image with a compound light microscope, take the power of the objective lens which is at 4x, 10x or 40x and multiply it by the power of the eyepiece which is typically 10x.
