Which type of white blood cell secretes specific antibodies?

A) T cell

B) Cytokine

C) B cell

D) Erythrocyte


C) B cell

Biology & Microbiology

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The most frequent genus causing wound infections in healthy people is

A. Pseudomonas. B. Staphylococcus. C. Pasteurella. D. Rochalimea.

Biology & Microbiology

Scientists at the Natural History Museum in London estimate that more than ____ percent of living species have not

yet been discovered.

a. 11 b. 27 c. 32 d. 56 e. 98

Biology & Microbiology

Which of the following is TRUE of the

immediate impact of Mendel’s publication in 1866 of the basic laws of inheritance?

a. it gave Darwin the insight he needed into the mechanism of variation b. it started a genetic revolution c. it made Mendel one of the most famous scientists of his day d. it did more than of these things (a - c) e. it had no immediate impact

Biology & Microbiology

All of the following are examples of post-transcriptional regulation except

A) cells can regulate translation by affecting how readily ribosomes associate with mRNA to read it. B) in eukaryotic cells, small noncoding RNAs that work in post-transcriptional regulation include microRNAs and short interfering RNAs. C) cells can regulate translation by methylating certain DNA nucleotides. D) in prokaryotic cells, small noncoding RNAs that work in post-transcriptional regulation include small RNAs. E) cells can regulate how mRNA is spliced and exported out of the nucleus before translation occurs.

Biology & Microbiology