Biologists will eventually shift from a super tree to a tree based on analyses of whole genomes

a. true
b. false


Answer: a. true

Biology & Microbiology

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In RNA editing:

A. spliceosomes change the base sequence of the primary transcript and therefore the protein for which it codes. B. different spliceosomes in different cells create different RNA sequences from the same primary transcript. C. enzymes change the base sequence of the primary transcript and therefore the protein for which it codes. D. different enzymes in different cells create different primary RNA transcripts from the same DNA sequence. E. a combination of spliceosomes and enzymes creates different primary RNA transcripts from the same DNA sequence.

Biology & Microbiology

The presence of trans fats in membranes ________ (increases or decreases) membrane fluidity and ________ (increases or decreases) the membrane transition temperature

Fill in the blank with correct word.

Biology & Microbiology

The cell in micrograph "II" is at which stage of

the cell cycle?

a. prophase b. telophase c. interphase d. anaphase e. metaphase

Biology & Microbiology

Which of the following is not a characteristic of B cells?

A) They carry out cell-mediated immunity. B) They originate in bone marrow. C) They are responsible for the memory response of humoral immunity. D) They are responsible for antibody formation. E) They have antibodies on their surfaces.

Biology & Microbiology