There are 92 chromosomes in a normal human cell undergoing mitosis at the anaphase stage. Indicate whether the statement is true or false
T
You might also like to view...
Which of the following has the greatest effect on the rate of chemical cycling in an ecosystem?
A) the ecosystem's rate of primary production B) the production efficiency of the ecosystem's consumers C) the rate of decomposition in the ecosystem D) the trophic efficiency of the ecosystem E) the location of the nutrient reservoirs in the ecosystem
Your 81-year old grandfather has been diagnosed with cancer of the thymus. The doctor is urging surgical removal of the cancer, but you and the family are worried about the consequences of removing an entire organ such as the thymus. Which statement is correct?
A. Your grandfather will have a loss of T lymphocytes and will have an immune deficiency. B. There is nothing to worry about; thymus removal will not affect your grandfather's immune status at his age. C. Your grandfather would not be able to produce complement proteins necessary for pathogen control and inflammation. D. Your grandfather would not have sufficient phagocytic cells and would not be able to contain bacterial infections.
Griffith, a British microbiologist, used bacteria and mice to demonstrate the process of transformation. During transformation,
A. a bacterial chromosome produces an exact copy of itself. B. the nucleus of a mouse cell repairs itself when damaged by bacterial infection. C. a bacterial cell is transformed into a spore during unsuitable environmental conditions. D. DNA from an infected mouse cell changes bacteria from a nonpathogenic to a pathogenic form. E. genetic material is transferred from one bacterial cell to another.
Which type of secretion system is commonly used by pathogenic bacteria to inject toxic proteins directly into eukaryotic cells?
a. Sec system b. Type I secretion system c. Type II secretion system d. Type III secretion system