The process of chromosome segregation begins at which phase?
A. Anaphase I
B. Telophase I
C. Metaphase I
D. Prophase I
E. Meiosis II
Answer: D
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What is the first step in the germination of a seed?
A) pollination B) fertilization C) imbibition D) hydrolysis of starch and other food reserves E) emergence of the radicle
PCR is particularly useful in
A. detecting viable yet non-culturable organisms. B. assessing impure (multiple types of bacteria present) samples. C. dealing with very small numbers of bacteria. D. relatively quickly producing results. E. All of the choices are correct.
How are open reading frames or exons predicted from genomic sequence?
A) If the open reading frame is at least 10 sense codons long, it is considered an exon. B) If the sequence is absent from mRNA, it is considered an exon. C) If there is a splice donor and accept or site at the ends of the open reading frame, it is considered an exon. D) If an open reading frame is longer than 21 sense codons, it is predicted to be an exon. E) If an enhancer and promoter sequence are present, the downstream sequence is considered an exon.
The action of a white blood cell engulfing a
bacterium is a. pinocytosis. b. phagocytosis. c. exocytosis. d. endocytosis. e. phagocytosis and endocytosis.