There are many types of plague in the world, and here are some of them: bubonic plague, septicemic plague, pneumonic plague, pharyngeal plague, meningeal plague, asymptomatic plague, abortive plague, cellulocutaneous plague, and there may be some more.
Answer:
I believe it is choice A. Bolo
Explanation:
Williamson ether synthesis is an organic reaction, forming an ether from an organohalide anda deprotonated alcohol(alkoxide). It involves the reaction of an alkoxide ion with a primary alky halide via SN2 reaction. The reaction to form propoxypropane using Williamson reaction is as shown
CH3CH2CHONa + CH3CH2CH2Br = C2H5CH2-O-CH2C2H5 + NaBr
Sodium propoxide 1-Bromopropane 1- Propoxypropane
Answer:
Meiosis
Explanation:
Meiosis, becose of the two parts of meiosis the parent cell is divided twice creating four cells called gametes
Mitosis create two identical daughter cells and is for all other body cells except for gametes (sex cells)
fertilization results in a new organism
Answer:
The correct answer is option d) "Silencer".
Explanation:
Gene silencing is the regulation of a gene expression that results in avoiding the expression of a gene during a certain period of time. A silencer is a DNA sequence that produces gene silencing. In this example the researcher founds that a gene is not longer regulated in all cells and the gene is still transcribed and translated into protein. The mutation responsible of this it is likely to be occurring in a silencer, avoiding gene silencing of the studied gene in all cells.
