Which of the following may aid Staphylococcus in resisting phagocytosis?

A.
Leukocidin

B.
Hemolysin

C.
Granulation enzyme

D.
Coagulase


D.

Biology & Microbiology

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Huntington's Disease is a fatal syndrome caused by a mutation in the HD gene. The disease has an average age of onset of 35 and the majority of individuals that are affected are heterozygotes

What is the probability that a 25 year old woman with no symptoms and who is the daughter of a man that has HD and a mother who does not will have a child that will have the mutant HD allele? A. 25% B. 50% C. 75% D. 100%

Biology & Microbiology

A checkpoint protein that functions during S stage would likely ____.

Biology & Microbiology

What would be strong evidence to suggest a protist is phototrophic?  

A.  Many lysosomes B.  Locomotion via several flagella C.  The presence of chloroplasts D.  Silicon dioxide cell walls E.  A benthic lifestyle Clarify Question · What is the key concept addressed by the question? · What type of thinking is required?   Gather Content · What do you already know about the nutritional strategies of protists? How does it relate to the question? · What other information is related to the question? Which information is most useful?   Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?   Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Hemophilia A is an X-linked recessive disorder. If a normal man marries a woman who is a carrier, what fraction of their daughters will have hemophilia? Select one:

a. 25% b. 50% c. 75% d. 0% e. 100%

Biology & Microbiology