It is possible that the error is due to patient’s neck was extended too far.
There are certain rules for the patient positioning during the open-mouth technique. For example, patient’s shoulders should be at equal distances from the image receptor to avoid rotation and the head should be positioned so the skull and the lower margin of the upper incisors are perpendicular (90 degrees) to the image receptor.
Answer:
G and K
Explanation:
Crossing-over is a genetic phenomenon that occurs in meiosis, specifically, Prophase I. It is when chromosomal segment (genes) are exchanged between non-sister chromatids of homologous chromosomes. Crossing-over occurs only to genes that are UNLINKED i.e. genes located on different chromosomes or far apart on the same chromosome.
This unlinked genes are said to have the highest RECOMBINATION FREQUENCY. Crossing-over allows genes on the same chromosome but far apart from each other, assort independently, which allows alleles to be recombined on the same chromosome. This phenomenon does not occur to genes that are close on the same chromosome as they will be inherited together as a unit.
In this case, G and K are the farthest apart, hence, they will have the highest RECOMBINATION FREQUENCY i.e. the likelihood for homologous crossing-over to take place during meiosis.
Answer:
Answer is option B, i.e. ecological succession.
Explanation:
Ecological succession can be understood as a slow process of change that takes place in the ecology or ecosystem over a given period of time. One species takes over the other species naturally and gradually with changing condition that falls favorable for the former. Here, in the above mentioned case, the Raspberry plants took over the habitat of Pine trees after they were knocked down by the winds. With the passage of time and favorable conditions for the pine seedling, they took over the plantation area again.
Answer:
A. offspring that look exactly like a single parent.
Explanation:
Asexual reproduction is a mode of reproduction in which a new offspring is produced by a single parent which is why I think the correct option is A.
I hope this helped :)