Biology, 30.03.2020 23:34 send2tejas
A bacterial cell that lacked the Rho protein would be a. resistant to several antibiotics. b. unable to terminate transcription of some genes. c. unable to carry out the elongation phase of transcription. d. unable to initiate transcription of some gene
Answers: 2
Biology, 22.06.2019 07:00
Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities
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Biology, 22.06.2019 13:00
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
Answers: 1
Biology, 22.06.2019 13:00
Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere
Answers: 1
Biology, 22.06.2019 17:00
Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f
Answers: 1
A bacterial cell that lacked the Rho protein would be a. resistant to several antibiotics. b. unable...
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