All animal cells contain the same type and quantity of organelles?
a. true
b. false
b
You might also like to view...
Members of the ____ lineage, known as leeches, are mostly freshwater parasites, are dorsoventrally flattened, and do
not have septa.
a. Hirudinea b. Polychaeta c. Monogenoidea d. Cestoda e. Oligochaeta
Assume brown eyes is completely dominant to blue eyes and this trait is controlled by a single gene. If
400 people in a population of 10,000 have blue eyes, how many people would be expected to be heterozygous for this trait? (Hint: use the Hardy-Weinberg formula) A. 800 B. 540 C. 320 D. 960 E. It is not possible to determine with the information provided.
You are studying an individual with very low levels of insulin in her blood. Further analysis indicates that cells of her pancreas are producing normal levels of this protein, but it is accumulating in the cytoplasm rather than being secreted from the cells. Which hypothesis makes the most sense to explain this observation?
A. A chromosomal segment that includes the gene for insulin has been inverted. B. A missense mutation has altered the ribosome-binding sequence at the 5' end of the mRNA. C. A small deletion has removed the nucleotides that code for the signal sequence at the amino terminus of the protein. D. A two-base deletion near the middle of the gene has altered the reading frame during translation of the protein. E. A missense mutation has caused premature termination during translation of this protein.
A male patient at a medical clinic presents with infertility due to nonmotile sperm and an inability to clear mucous from his respiratory tract. Other tissues are normal. You suspect that these symptoms may be caused by mutant
a. tubulin. b. kinesin. c. dynein. d. tau protein. e. MAP 1.