Explanation:
The use of CRISPR/Cas9 avoids the need for protein engineering to develop a site-specific nuclease against a specific DNA target sequence, requiring only the synthesis of a new piece of RNA. This dramatically simplifies and greatly reduces the time needed for gene editing design and implementation.
Answer:
Option D, stimulating bladder contractions.
Explanation:
Neostigmine has a amine structure due to which it can cross the blood brain but once it gets absorbed it is secreted rapidly.
Disabled Urinary retention is a scenario in which the bladder never gets full. Neostigmine leads to accumulation of acetylcholine which triggers concentration based contractions in the urinary bladder. The muscarinic receptor on the urinary bladder contracts the bladder and the contraction gets stronger with passage of time
Hence, option D is correct
In times of stress the sympathetic nervous system stimulates the adrenal medulla which then secretes catecholamines. The catecholamines includes; Dopamine, epinephrine and norepinephrine. Catecholamines are made by nerve tissue, the brain, and the adrenal glands. They help the body respond to stress or fright and prepare the body for "fight or flight" reactions.
Answer:
In gymnosperms the female reproductive part is the cone and the pollen is the male reproductive part. Pine trees and other gymnosperms produce two types of cones. Other gymnosperms and pine trees produce two kinds of cones. The larger female cone, which is the seed cone and the male cone called the pollen cone.
The cones of gymnosperms, flowers of angiosperms, and the reproductive fronds of ferns all have a fundamental reproductive unit that is a leaflike organ bearing sporangia.
During anaphase, homologous chromosomes separate and head towards opposite poles of the cell.
- A cell prepares for cell division by replicating its chromosomes, segregating them, and creating two identical nuclei during the mitotic phase.
- After the metaphase procedure, the mitotic stage known as anaphase occurs during which the freshly replicated chromosomes are transferred to the opposing poles of the cell and the replicated chromosomes are split.
- Sister chromatids split from one another and are drawn to the opposite ends of the cell during anaphase.
- The sister chromatids are able to separate because the protein "glue" holding them together is degraded.
- Each chromosome now exists on its own. Each pair's chromosomes are drawn to the cell's opposite ends.
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