Which of the following approaches is not used to create a transgenic animal?

A) Sperm-mediated DNA transfer
B) Pronuclear microinjection
C) Transfection of ES cells
D) Retrovirus-mediated transgenesis
E) Embryo twinning


E

Biology & Microbiology

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Polyploidy can be described as ____

a. only occurring artificially

b. only occurring when there is one set of chromosomes c. fatal to all living things d. occurring in about 20% of flowering plants e. fatal in humans but common in flowering plants

Biology & Microbiology

____ is a systemic infection associated with microorganisms multiplying in circulating blood

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Some methanogenic Archaea are capable of fixing nitrogen.

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

Biology & Microbiology

Which of the following immunoglobulins is produced by plasma cells in response to an allergen?

A) IgA B) IgD C) IgE D) IgG E) IgM

Biology & Microbiology