The process by which an antigen binds to a specific antibody on a naïve B cell, thereby triggering mitosis and the build-up of a large population of antibody-secreting plasma cells (also known as effector B cells), is called ____________________

Fill in the blank(s) with correct word


clonal selection

Biology & Microbiology

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DNA is

a. composed of protein and lipid subunits. b. organized into functional units called genes. c. organized into functional units called chromosomes. d. organized into functional units called ribosomes. e. organized from information contained in proteins.

Biology & Microbiology

Which of the following is NOT a characteristic of protozoa?

A) Most exhibit asexual reproduction. B) They are single-celled organisms. C) They are eukaryotic organisms. D) They are all photosynthetic. E) They frequently possess cilia or flagella.

Biology & Microbiology

Experiments with ribbon worms and planaria have shown that 

A. it is easy to hybridize the two species in nature. B. Pax6-related genes are not always required for eye regeneration. C. the DNA of each is sufficiently similar that they can be hybridized in a lab setting. D. their eyes are examples of convergent evolution.

Biology & Microbiology

A person with blood group A has both A and B type antibodies. Indicate whether the statement is true or false

Biology & Microbiology