Explain why speciation analysis is particularly important for Cr, As, and Se? What are the major valance (oxidation number) for each of these three elements? Describe their impact with regard to plant, and animal/human.
In: Biology
you performa throat culture on blood agar. After incubation, you notice several B-hemolytic colonies. what would be the best way to determine whether the organism was Staphylococcus aureus or Streptococcus pyogenes, both which B-hemolytic?
a)look for motility
b)check for sensitivity to novobiocin
c)streak a MacConkey plate
d)streak a mannitol salts agar plate
In: Biology
In: Biology
1.what kind of medium is Mannitol Salts Agar (MSA)
a) neither selective nor differential
b)differential
c)selective
d)both selective and differential
2.which of the following is the best method to distinguish Bacillus megaterium from Bacillus Subtilis?
a)use mannitol phenol red
b)streak a MacConkey plate
c)perform an endospore stain
d) perform a gram stain
In: Biology
What is the difference between “vertical inheritance” and “horizontal inheritance”? Does horizontal inheritance of genes provide evidence against Darwin’s theory of Evolution by Natural Selection? Why or why not?
In: Biology
1) Draw the whole cellular respiration cycle: Glycolysis, Bridge Step, and Krebs cycle (don't have to draw the molecules, just the names and all of the intermediates).
In: Biology
In: Biology
Homework 5: Sigmund Freud
Freud’s general theory of personality is called ___________________ theory. While working with patients experiencing conversion disorders, Freud became convinced that all such cases were caused by unexpressed sexual motives.
Freud viewed the mind as being composed of the three parts. The ___________________ functions entirely at the unconscious level and operates according to the ___________________ principle, which attempts to satisfy its needs by using wish-fulfilling mental images. A second part of the mind is called the ___________________, which can be thought of as the executive of personality and helps us to deal with the world through the reality principle. The only part of the mind containing a sense of morality is the ___________________, which is created mainly by parents. Parental punishment creates the moral inhibitions called conscience, whereas parental rewards establish a standard of conduct called the ego ideal.
Freud believed that our personalities are formed as we pass through a series of developmental stages from infancy to adulthood. Stressful events experienced during a stage can leave the personality ___________________ at that stage. According to Freud, the developmental stages result from a shifting energy from one ___________________ zone to another. Since these stages represent the release of sexual energy, they are called ___________________ stages. The first stage, lasting from birth to one year of age, is called the ___________________ stage. If a person becomes fixated in the oral stage, he or she may engage in overeating and drinking.
The second stage of development, from one to three years, is called the ___________________ stage. Fixations at this stage may lead to a personality that is either stingy and compulsive, called ___________________ ___________________, or cruel and disorderly, called ___________________ ___________________.
From ages three to six, children are in the ___________________ stage, in which the genitals become the primary source of pleasure. During this stage, boys develop a sexual attraction to their mothers, referred to as the ___________________ ___________________. Boys also develop a fear of their fathers, called ___________________ ___________________. Girls develop desires for their fathers called the ___________________ ___________________. According to Freud, failure to resolve the phallic stage results in a phallic personality, characterized by egocentric selfishness, impulsiveness, and a lack of genuine feeling for others.
From ages 6 to 11, children enter
the ___________________ stage, during which sexual interest is
relatively inactive. From age 11 through adulthood, the individual
is in the ___________________ stage, in which sexual and romantic
interests are directed towards one’s peers. Most modern revisions
of psychoanalysis agree that Freud overemphasized
___________________ motivation, underemphasized positive
aspects of personality and the importance of relationships, and was
prejudiced against women.
Word Bank
Id
Phallic
Oedipus Complex
Erogenous
Anal Retentive
Psychoanalytic
Anal Expulsive
Sexual
Psychosexual
Genital
Latency
Oral
Electra Complex
Superego
Unconscious
Ego
Fixated
Defense mechanisms
Castration anxiety
Penis envy
Sublimination
Anal
Pleasure
Repression
In: Biology
Give one (1) example of a Tumour-Suppressor. Explain what its function is, what pathway(s)
It is involved in, and how it contributes to cellular transformation and oncogenesis.
&
Give one (1) example of a Tumour-Suppressor. Explain what its function is, what pathway(s)
It is involved in, and how it contributes to cellular transformation and oncogenesis.
can u tell me please in briefly
In: Biology
Describe how influenza A and HIV differ in genome composition and what this difference means for their replication and generation of new virions.
can u tell me please in briefly
In: Biology
Vitamin C can bypass complexes 1 and 3 to directly reduce 2 cytochrome c proteins. What is the P:O ratio for vitamin C? Explain
In: Biology
Explain why fixed tissues can be used to perform fluorescence in situ hybridisation but not karyotyping. Compare what is being detected in each method and how samples are prepared.
In: Biology
Briefly explain why prokaryotic and eukaryotic cells are different. Include the description of what the difference is in each cell type.
In: Biology
How is compliance related to wall tension in the wall of a vessel? Which type vessel is more compliant: veins or capillaries? And what property allows these vessels to be more compliant?
In: Biology
Both Siphonaptera and Phthiraptera are parasitic species. In what ways are these two orders similar and in what ways are they different? What are some of their adaptations to the parasitic mode of life? (5 points)
*please include link to any thing cited in your answer so I may reference any resources for more information
In: Biology