Normal white blood cells (called B cells) and cancerous B cells that cause leukemia both carry a unique surface protein called CD-19

a. True
b. False
Indicate whether the statement is true or false


True

Biology & Microbiology

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Assuming complete dominance, what is the expected ratio of phenotypes of the offspring following the cross of two heterozygotes?

A) 4:1 B) 1:1 C) 3:1 D) 1:2:1

Biology & Microbiology

DNA possesses

A) only C and T bases. B) only A and G bases. C) A, U, G, and C bases. D) C, T, A, and G bases. E) only U and T bases.

Biology & Microbiology

Which is the persistent survival and multiplication of microorganisms on/in a host called?

A. Infection B. Colonization C. Nosocomial Infection D. A reservoir

Biology & Microbiology

In a human zygote, where did most of the cytoplasm come from?

A) spermatogonia B) oocyte C) polar bodies D) sperm

Biology & Microbiology