Which of the following bacteria DO NOT fall under the Lancfield's Classification of Streptococcus

A. Streptococcus pneumoniae
B. Streptococcus pyogenes
C. Enterococcus faecalis
D. Streptococcus agalactiae
E. Streptococcus bovis


Ans: A. Streptococcus pneumoniae

Biology & Microbiology

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Compare and contrast the prokaryotic and eukaryotic light-gathering machinery function and spatial organization. Why do various chlorophylls show different absorption spectra?

What will be an ideal response?

Biology & Microbiology

Consider the example of sickle-cell anemia and the allele for the sickle-cell trait, and answer the following

t or f: Eventually, natural selection will typically result in the sickle-cell allele being fixed in the population. t or f: Selection at this locus is an example of disruptive selection. t or f: This is an example of stabilizing selection and will decrease the variation at this locus in the population. t or f: This is an example of stabilizing selection and will maintain variation at this locus. t or f: Hypothetically, if homozygous recessives had the highest fitness (i.e. selection was directional) of the three genotypes discussed in the text, then natural selection would lead to fixation of the sickle-cell allele. What will be an ideal response?

Biology & Microbiology

What is responsible for the large surge of progesterone in the menstrual cycle?

a. the maturation of the follicle b. the surge in estrogen c. the surge in LH d. the release of the egg e. the formation of the corpus luteum

Biology & Microbiology

An r-selected species is more likely to become an invasive pest than a K-selected species.

Answer the following statement true (T) or false (F)

Biology & Microbiology