Answer:
The correct answer will be option-B.
Explanation:
A synapse is a junction or point of contact between two neuron cells in the human body.
In conditions when the synapses are overproduced in the brain during development is followed by the reduction of this synapse. This process of the gradual reduction of the overproduced synapse is known as the <em>synapse pruning.</em>
The synaptic pruning is highly dependent on the area of the brain in which synapses are present, experience and learning like the synaptic pruning is observed in the 4th to 6th year of life in the area which is involved in the auditory and visual perception.
Thus, Option-B is the correct answer.
Pros (good):
- Inexpensive
- Can degrade the crudest oils
- Quick and minor waste is water and CO2
Cons (bad)
- Waves can carry bacteria into place they are not needed or wanted
- Germs may harm marie animals by putting excess CO2 in water
- Germs may be harder to exterminate because they are engineered
To make sure we don't get germs and get sick
Trisomy is the term that
describes the chromosomal abnormality of having three copies of a single
chromosome. The outcome of this phenomena would have 47 chromosomes in the cell
instead of 46. This results in the congenital malformations, serious
developmental and motor delays and a high incidence of mortality.
Answer:
D. They block communication between enhancers and non-targeted promoters
Explanation:
Insulator sequences are the group of DNA sequences that protect the protein-coding regions of the DNA from the surrounding regulatory sequences. Some insulator sequences are present between the enhancers and promoters of a gene. These insulator sequences do now allow these enhancers to regulate the expression of genes by sending inappropriate signals.
However, if the insulator sequences are not present between the enhancers and promoters of certain genes but are located somewhere else, enhancers can upregulate the expression of these genes.