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Some species of fungi show maternal inheritance of mitochondrial alleles after meiosis. Other fungal species show "mixed" inheritance, that is most haploid progeny possess mitochondrial genomes from both parents. In many cases, the maternal inheritance correlates with female gametes that are larger in size, while mixed inheritance is usually seen when gametes from each sex (or "mating type") look the same.
Describe the maternal inheritance pattern.
A profressor in a second-term calculus course wants to determine whether the year in college has any effect on the performance of his students on their final exam.
Magnetic field reversals (as represented in the figure above) have been occurring roughly every 200,000 years. If you were to observe iron crystals embedded in oceanic geology that were pointing neither northward or southward, based on plate tecto..
The mean value of a trait is 250 units and the h2 for the trait is .50. A male and female measuring 240 and 280 units respectively are selected for breeding and they produce several offspring. Find expected value for the trait among their offspring.
Assume you place a cell into a solution containing small/non-polar purple dye molecules and observe it under a microscope.
Consider a population of bats where the folded ear allele is recessive to the un-folded ear allele. If in a population of 100 bats, 64 of the bats have un-folded ears, if they are in HW equilibrium, how many do you expect to be Homozygous Dominant..
Gases move from areas of high (total) gas pressure to areas of low (total) gas pressure. Also, the pressure of a "canned" gas changes if the container volume changes.
A cell whose cytoplasm has a concentration of 0.02 molar glucose is placed in a test tube of water containing 0.02 molar glucose. Assume that glucose is not actively transported into the cell, which terms describes the tonicity of an external solutio..
A cell with a 5 percent concentration of salt in it is placed in a solution with a 15 percent concentration of salt. Imagine that the cell is permeable to water but not to salt.
The seeds in bush bean pods are each the product of an independent fertilization event. Green seed color is dominant to white seed color in bush beans.
Explain how does homeostasis maintain a dynamic range of environmental qualities rather than hold the internal environment at a set point?
Assume you are analyzing microbial life in the Rocky Mountains. You scoop up a water sample from a melted snow puddle because you are curious about the possible microbes that might live there.
A number of major worldwide industries are based on anaerobic respiration in a lower form of organism.define how anaerobic respiration plays a part.
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