Biology

A DNA fragment is introduced into the lacZ gene of a plasmid, which also contains an ampicillin resistance gene. What is the appearance of bacteria transformed with this plasmid if they are spread on plates containing ampicillin and X-gal
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What group of archaebacteria is both thermophilic and acidophilic?PyrogensMethanogensThermoacidophilesHalophiles
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Qu acciones podran realizar para poder reducir los gases de efecto invernadero como el Co2?AYUDA POR FAVORDOY CORONITA Y 5 ESTRELLAS
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What does the phosphorylation of Cdc25 by M-Cdk do? Question 4 options: It inactivates Cdc25, which promotes activation of more M-Cdk. It activates Cdc25, allowing the cell to exit mitosis. It activates Cdc25, which inactivates M-Cdk. It inactivates Cdc25, preventing further activation of M-Cdk. It activates Cdc25, which in turn activates more M-Cdk.
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Imagine you do a test cross between a purple-flowered pea plant having serrated leaves (a dominant trait) and a white-flowered pea plant having smooth edges. If the purple-flowered plant is heterozygous for both traits, the expected ratio in the offspring is 1 purple-serrated:1 purple-smooth:1 white-serrated:1 white-smooth. Instead, you see 4 purple-serrated:1 purple-smooth:1 white-serrated:4 white-smooth. What is the explanation of this ratio
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Imagine you found S. aureus to be resistant to Penicillin by Kirby Bauer analysis, but susceptible to Penicillin treatment in liquid culture (in other words, a MIC was determined). Which of the following are possible explanations for this inconsistency?a. The concentration of Penicillin was higher in the Penicillin antibiotic disk than that used in liquid culture treatment. b. The Penicillin disks used for Kirby Bauer analysis were expired/no longer active. c. The concentration of bacteria was lower on the Mueller Hinton plate for Kirby Bauer analysis than that used in liquid culture treatment
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Igneous rocks turn into sediments through the process of ______.A . ErosionB.crystallization C.melting D. Deposition
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Bacteria break down the nitrates and release oxygen. True or false? Short answer
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pls help I will mark brainlest
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Which of the following describes a predator? A a fish that is killed and eaten.B a bear that kills and eats fishC a worm that lives inside a bear D a bear that has a worms in its gut.
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Which of the following statements is true about interacting with people from different cultures? O a) Most people within a culture think and act the same. O b) It's important to treat people from different cultures as individuals. Oc) Some cultures are better than other cultures. Generalizations and stereotypes don't impact people's perceptions of cultures.
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answer h and i urgently no explanation needed
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What happens with the release of DDT into the food chain zooplankton -- small animal -- large animal-- bald eagle? And what process is involved
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The Kirkwood gap is a gap with no asteroids as a result of the gravitational pull of____.
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What is phagocytosis?A) how Trichoplax adhaerens processes stimuliB) how Trichoplax adhaerens reproduces sexuallyC)how Trichoplax adhaerens moves using its ciliaB)how Trichoplax adhaerens eats by engulfing its foodCAN I GET ANSWERS ASAP PLS
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The sympathetic and parasympathetic nervous systems are both part of which division of the nervous system?the central nervous systemthe peripheral nervous systemthe somatic nervous systemthe autonomic nervous system
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ASAPWhat does the fluid part of the Fluid Mosaic Model mean?A. The proteins float around in the membrane as if in a fluid.B. The lipids are suspended in a fluid.C. The membrane creates necessary fluids for the cell.D. It is fluid because it is adaptable to change.
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A specimane collection helps a scientsist do research by:A. Asembling a large number of sample comparisons B.providing a way to afford even the most expensive equpmentC.creating a realistic depiction of an imaginary undersea worldD.summerizing the results of an other scientists investigations
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What were the three large, flightless birds with similar features found on different continents, Australia, Africa, and South America?
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Which plant is use for pine I am just in grade 5
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what do you mean by components of mixture?
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What are the two main phases of the cell cycle
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An important species of an Atlantic ocean community is the giant kelp, which helps form a suitable habitat forfish and marine invertebrates.Which of the following best describes the role of giant kelp in its ecosystem?Choose 1 answer:A dominant speciesA pioneer speciesA foundation speciesAn invasive species
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11. Choose the best answer.A spore is a reproductive structure that contains a haploid cell anda food supplya stylea protective coatinga diploid cell
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