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Q1. Scientists are studying bacteria discovered the sea floor. In the absence of light, these bacteria can use organic molecules (including human waste) to generate electricity. NASA hopes they might one day be useful in producing some electricity on a spacecraft. What mode of nutrition do these bacteria probably use?
Q2. A cell biologist cautiously measured the quantity of DNA in grasshopper cells growing in cell culture. Cells examined throughout the G2 phase of the cell cycle contained 200 units of DNA. What would be the quantity of DNA at G1 of the cell cycle in one of the grasshopper daughter cells?
q1. why water is known as polar solvent? how is hydrogen bonding involved in cohesive attraction of water molecules?
What common misconceptions about nature result from the phrase "survival of the fittest" as opposed to the phrase that accurately describes what happens in nature, "survival of those who are fit-for now".
List the steps of the complement fixation test. include diagrams for each step, contrasting the results for a positive sample versus a negative?please help me.
For any EKG reading, describe the waves and their respective corresponding electrical and mechanical activities.
In cats, hair length is a trait that is controlled by a gene with 2 alleles. The dominant allele codes for a protein that produces short hair, and the recessive allele codes for a protein that produces long hair.
A student performed a BioRad miniprep of plasmid DNA that resulted in 100ul(microliter) of DNA solution. To determine the concentration of this solution, 20ul of the DNA solution was placed in 480ul of water and the absorbance of the diluted sampl..
Describe the relationship between biological psychology and other fields in psychology and neuroscience.
If you compared a contracted sarcomere to a relaxed sarcomere, which of the following regions would NOT differ in width?
A very common type of red or green colorblindness in humans is a X-linked recessive trait. A woman who is red or green colorblind marries a man with normal color vision.
An organism's genome contains four pairs of chromosomes. Assuming that crossing over does not occur, how man unique gamete types can be produced in this organism? What is the probability that a gamete will contain all of the paternal chromosomes?
Spiny species of diatoms are found in both warm subtropical waters and colder areas. Because warm water is less dense than cold water, would you predict any differences between the spines of warm-water and cold-water individuals? Why?
All enterics are facultative anaerobes; that is, they have both respiratory and fermentative enzymes. What color results would you expect for organisms in O-F glucose media inoculated with an enteric.
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