Answer:
The correct answer is option e. "result in permanent activation of Ras".
Explanation:
Ras function is regulated by the GTP/GDP cycling rate, in a way that Ras is inhibited by the substrate GDP. Once Ras hydrolyzes GTP, GDP is produced and Ras is inhibited by GDP. A mutation that inhibits Ras from hydrolyzing GTP, would lock Ras in a permanently activated state because no GDP would be produced and there will be no substrate to inhibit Ras.
our thyroid glands plays a main role in a human body. It secretes thyroxine and calcitonin. In which thyroxine help in growth and cellular metabolism and calcitonin helps to regulates calcium concentration in blood . If thyroid gland stops working then there is low level of calcium in our blood, which leads to mental and hormonal disorder. In this way a person's blood calcium level would be affected if his/her thyroid gland stops working.
C) transposons or jumping genes.
hope this helps you out good luck.!!!!
Answer:
The correct answer is quadriplegia.
Explanation:
The paralysis of both the legs and arms has been known as quadriplegia. The main reason for quadriplegia is the injury to the spinal cord, however, other conditions like strokes and cerebral palsy can also result in similar paralysis. The degree of damage depends upon the part of the spinal cord injured and the amount of destruction done.
With the injury to the spinal cord, the brain loses the tendency to communicate with it and so the movement and sensation get impaired. Quadriplegia takes place when the region of the neck of the spinal cord gets injured like a C3 fracture. An extreme spinal cord injury may obstruct the process of breathing and hampers the movement of limbs.
An individual with complete quadriplegia loses the tendency to move any part of the body underneath the neck, even some are not able to move their neck.
A landform is a feature on the Earth's surface that is part of the terrain. Mountains, hills, plateaus, and plains are the four major types of landforms. Minor landforms include buttes, canyons, valleys, and basins. Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills.
A plain is nothing but a low-lying relatively flat land surface with very gentle slope and minimum local relief. About 55% of the earth's land surface is occupied by plains. Most of the plain have been formed by deposition of sediments brought down by rivers.
Plateaus are elevated flatlands. In other words, it is flat land which is standing high above the surrounding area. Furthermore, they may have one or more sides with steep slopes. Also, depending upon the plateau, their height varies from a few hundred meters to several thousand meters.
