Potassium tert-butoxide is used to make alkenes by an elimination reaction that does not follow Zaitsev's rule. The compound dissociates into its ionic form, potassium ion and t-butoxide ion. The t-butoxide ion reacts with a haloalkane. Methanol is fairly acidic and it will also dissociate into hydronium and methoxide ions. The methoxide ion will react with the haloalkene and produce a Zaitsev alkene making it difficult to perform the analysis.
Answer:
d. Expressivity refers to the range of expression of a given phenotype.
e. Penetrance refers to the percentage of individuals that expresses the mutant phenotype.
Explanation:
Penetrance is the probability of a gene being expressed. Sometimes, phenotype is not observed even when the dominant allele is present. It is a result of various genetic and environmental factors coming together.This phenomenon is called as incomplete or reduced penetrance. For example: polydactyly trait is produced by a dominant allele but its penetrance is low in general population hence few people show this trait.
Expressivity is the variation in phenotypic expression when an allele is penetrant. Same genetic combination for a trait can have different expressivity in the same population. This phenomenon is also a result of genetic and environmental factors acting together. For example: people who do end up showing polydactyly trait may show it to different degrees. Some might have one extra finger, some might have two. Some might have a stub, some might have a full grown finger.
There are many conditions that makes someone's heart rate change. Below are a few.
1. The person does some physical activities
2. Someone stops doing physical activities
3. Someone is nervous can cause it to change.
I hope these help. Sorry if I misunderstood the question
Answer:
2.5271%
Explanation:
The percent error is defined as;
(error/actual value) * 100%
In this case the error will be;
27.7cm - 27.0cm = 0.7cm
The actual value is 27.7cm since it is the one specified by the manufacturer.
The percent error in the worker's measurement is thus;
(0.7cm/27.7cm) * 100 = 2.5271%
All of these have treatments with antibiotics.
