Answer the following questions true (T) or false (F)
1. A bacteria's DNA can be found in the nucleus of the cell.
2. According the endosymbiont theory we can reason that the merging event that led to the mitochondria occurred before the merging event that led to the chloroplast because all eukaryotic cells which have chloroplasts also have mitochondria, but all cells that have mitochondria do not necessarily have chloroplasts.
3. Binary fission, mitosis, and meiosis all produce genetically identical daughter cells.
1. FALSE
2. TRUE
3. FALSE
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You are a forensic technician working on a DNA sample obtained from a crime scene. Your job is to compare the unknown DNA sample with known DNA samples collected from five different suspects. Preliminary analysis using only a few DNA markers revealed that the unknown sample could possibly match two of the suspects. After consulting the case file, you find out that these two suspects are brothers (but not twins). You realize that you will have to do a more detailed analysis on the samples so that you can distinguish between the brothers and determine which brothers' DNA matches the unknown sample.Why can't you use mitochondrial DNA to distinguish between these two suspects?
A. The brothers share the same mitochondrial DNA. B. The sequence of mitochondrial DNA has not yet been determined. C. Because mitochondrial DNA is inherited in a paternal pattern. D. There are no molecular techniques available that allow one to analyze mitochondrial DNA.
Prokaryotes that are rod-shaped are called
A) bacilli. B) spirilla. C) cocci. D) eukaryotes.
In the early years of microbiology, microorganisms were referred to as ________
cooties animalcules zygotes prokaryotes
A karyotype could detect all the following conditions except _____.
A) color blindness B) Down syndrome C) Turner's syndrome D) Klinefelter syndrome