Which of the following best describes a tetrad? A. tetrads are not present in meiosis, they are present mitosis
B. the four cells resulting from meiosis
C. homologous chromosomes during prophase 1
D. the spindle fibers at the end of telophase 1

this protocol describes a detailed procedure for intracellular flow cytometry staining.

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the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.