Campylobacter gastroenteritis is usually caused by ingestion of contaminated poultry
Indicate whether the statement is true or false
TRUE
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Upon heat treatment, bacteria die at a constant proportion
Indicate whether this statement is true or false.
How does recombination frequency relate to activities in the cell?
a. Recombination frequency relates to activities in the cell by the frequency at which mutation disrupt the proper functioning of a gene. b. Recombination frequency relates to activities in the cell by the frequency at which post-transcriptional editing results in new functions for the product of a gene. c. Recombination frequency relates to activities in the cell by the frequency at which crossing over in meiosis separate two genes that were located on the same chromosome. d. Recombination frequency relates to activities in the cell by the frequency at which non-disjunction errors are generated by chromosomes refusing to separate during anaphase I.
The structure in the above figure demonstrates
which of the following? a. transcription and translation occur simultaneously on a single strand b. ribosomes attached to a strand of DNA c. a small ribosomal subunit d. multiple ribosomes on a strand of mRNA e. all of these
Why are mitochondria present in the sperm?
a. To provide energy for the movement of the flagellum b. To provide energy for the acrosome to penetrate the egg c. To provide nutrients for the sperm d. To provide nutrients for the developing embryo e. To provide energy for the maturation of the sperm