Biology, 18.02.2020 22:32 giannaventura00
Mitochondria and chloroplasts are thought to have evolved from free-living aerobic bacteria that were engulfed by an ancestral anaerobic cell and established a mutually beneficial (symbiotic) relationship with it. Which of the following statements is NOT true about these organelles? a. They are similar in size to small bacteria. b. They have their own circular genomic DNA. c. They have their own ribosomes. d. They have their own transfer RNAS. e. They are found in all eukaryotes.
Answers: 2
Biology, 22.06.2019 04:10
How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.
Answers: 1
Biology, 22.06.2019 10:30
Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.
Answers: 3
Biology, 22.06.2019 17:30
The krebs cycle is also known as the calvin cycle pyruvic acid cycle carbon - oxygen cycle citric acid cycle
Answers: 2
Mitochondria and chloroplasts are thought to have evolved from free-living aerobic bacteria that wer...
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