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Terry catches a ray-finned fish from the ocean and notices that, attached to its flank, there is an equally long, snakelike organism. The attached organism has no external segmentation, no scales, a round mouth surrounded by a sucker and two small eyes. Terry thinks it might be a marine leech, a hagfish, or a lamprey.
Which feature excludes it from possibly being a leech?A) its elongate shapeB) its lack of external segmentationC) its round mouthD) its lack of scalesE) its anterior sucker
1. You have discovered a C. elegans mutant hermaphrodite with funky movement. You call it fnk-1. The fnk-1 mutations behaves as a recessive mutation.
Your child comes running inside the house crying after playing outside. To your horror you notice a rusty nail sticking out of their foot. Apparently they stepped on the nail.
There are other techniques for counting bacteria, such as a direct microscopic count and turbidity. Why is the standard plate count preferred for food?
Membranes are essential components of both prokaryotic and eukaryotic cells. Identify three molecules or types of molecules that are components of the plasma membrane in eukaryotic cells. Discuss the structure and function of one of these componen..
A hypothetical enzyme in which the active site is complementary to the substrate will.
Two aqueous solutions are separated by a semi-permeable membrane that was not permeable to salt, but was to water. Side A had a 20 percent salt solution Side B had 50 percent salt solution,
A married couple seeks your advice after having a child affected by an autosomal dominant condition. Studies reveal they are both heterozygous carriers of the mutation but are phenotypically normal.
usually for physical education disciplines, students are required to give presentation regarding a single protein that is related to sports or diseases.
What structures in cells indicate an evolutionary relationship between bacteria, plants and animals?
The autosomal allele for curly wings in fruit flies is dominant but lethal when homozygous. The allele for white eyes is X linked and recessive to the wildtype allele for red eyes. In a cross of a curly winged red eye male to a curly winged white ..
A man and a woman each have one sickle-cell anemia allele. He is color blind, while she is a carrier for color-blindness. What is the probability that a daughter will have both full-blown sickle-cell anemia and be colorblind?
Determine what kind of DNA mutation in a gene would result in the production of a shorter version of a protein missing amino acids in the middle of the protein
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