How many chromosomes are found in a single human cell at the end of each of the following meiotic stages? ________ prophase I ________ anaphase I ________ prophase II ________ telophase II
What will be an ideal response?
46 prophase I
46 anaphase I
23 prophase II
46 telophase II
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Describe each of the following parameters that relate to the structure and function of tRNA:
(a) four functional domains (b) Wobble hypothesis What will be an ideal response?
Which of the following statements is FALSE regarding the complexity of biological systems?
A) An understanding of the interactions between different components within a living system is a key goal of a systems biology approach to understanding biological complexity. B) Knowing the function of a component of a living system can provide insight into its structure and organization. C) Understanding the chemical structure of DNA reveals how it directs the functioning of a living cell. D) An ecosystem displays complex properties not present in the individual communities within it.
In the human body:
a. bacterial cells can survive only inside the eukaryotic cells. b. the diversity of bacterial cells living in the mouth is exceeded by the diversity living on the skin. c. there are more microbial cells than human cells.
Which of the following is a FALSE statement about prokaryotes?
A) Prokaryotic cells contain ribosomes. B) Prokaryotes are so small that they can be seen only with a high-power electron microscope. C) Prokaryotes may contain extra genes in plasmids. D) Prokaryotes have a plasma membrane, similar to that of eukaryotes.