Scientists have sequenced the whole human genome; this means that the normal DNA sequence for the whole of human body is known. Thus, it is now possible to known the specific abnormalities that occur in disease conditions.
This means that people that are at risk of certain diseases can be tested by taking DNA sample from them and then comparing the sequence of their DNA with that of the diseased DNA sequence.
For instance, pregnant women that are at risk of giving birth to children with down syndrome can be tested in the hospital to find out if the baby inside them have the disorder. This is done by collecting some amniotic fluid from their body, the fluid is then analyse for DNA sequence. If the fetus has down syndrome the pregnancy will be aborted.<span />
The weathering process occurs when rocks are exposed to the hydrosphere (water) and atmosphere (air).
The first living things on Earth, single-celled micro-organisms or microbes lacking a cell nucleus or cell membrane known as prokaryotes, seem to have first appeared on Earth almost four billion years ago, just a few hundred million years after the formation of the Earth itself.
Answer:
Relationship between Yucca plant and Yucca moth is OBLIGATE MUTUALISM.
Explanation:
Obligate mutualism- The mutual relationship between two partners where both partners are benefited by each other and can not survive without each other.
In case of Yucca plant and Yucca moth,they cannot survive without each other.Yucca moth larvae feed on seeds of Yucca plant and Yucca plant have a single pollinator i;e, Yucca moth. Yucca moth collects pollen from anther and fly to another flower and transfer that pollen to other flowers stigma. In this way they transfer the pollen , usually they make a hole in the ovary to lay eggs and directly transfer pollen to the inside of the stigma.
After laying eggs they mark it with some special kind of pheromone which alerts other moths not to lay egg inside the same flower or lay some eggs not much. So that they can be protected inside the flower and can be developed well.
Answer:
The correct option is;
B. Mitochondria
Explanation:
The mitochondria are the organelle of the cell bund to the membrane that are referred to as the cell powerhouse they function in the same manner as the digestive system, such that they take in raw nutrients which are broken down to produce energy containing molecules which makes up the majority of the chemical energy required for the various biochemical reactions of the cell in a way such that the energy they produce are stored in adenosine triphosphate (ATP) molecules.
