#Question id: 4110
#Unit 3. Fundamental Processes
Tay-Sachs disease belongs to the family of lysosomal storage diseases; it is an autosomal recessive neurodegenerative disorder caused by deficiency of the lysosomal enzyme hexosaminidase. The inability to degrade sphingolipids results in the deposition of these lipids in the cells that causes severe mental retardation and death in childhood. The most common mutation in Tay-Sachs disease patients is a 4-base pair insertion in exon 11 of the 14 exons of the hexosaminidase gene. What could be the most likely consequence of this mutation?
#Question id: 4569
#Unit 11. Evolution and Behavior
Which of the following must exist in a population before natural selection can act upon that population?
#Question id: 545
#Unit 1. Molecules and their Interaction Relevant to Biology
Which one of the following is not among the six internationally accepted classes of enzymes?
#Question id: 10643
#Unit 10. Ecological Principles
Population of ground squirrels has an annual per capita birth rate of 0.06 and an annual per capita death rate of 0.02) Estimate the number of individuals added to (or lost from) a population of 1,000 individuals in one year.
#Question id: 10586
#Unit 10. Ecological Principles
Which of the following factors may not change carrying capacity over time?