Biology, 18.03.2021 01:30 theyycraveenaee
The mutation rate in bacteria is about 3 nucleotide changes per 10 billion nucleotides per cell generation. Under laboratory conditions, bacteria such as Escherichia coli can divide and double in number about every 40 minutes. If a single Escherichia coli cell is allowed to exponentially divide for 24 hours in this manner, how many mutations would you expect to observe on average in the genome (5 million nucleotides) of each of the resulting bacteria compared to the original cell
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Biology, 22.06.2019 09:00
Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis
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Biology, 22.06.2019 13:10
Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed
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Biology, 22.06.2019 19:20
Molecules like glucose and amino acids are not lipid soluble, so cannot cross the cell membrane by simple diffusion. instead, they are shuttled across by carrier proteins in the membrane from high to low concentration. does this process require energy from the cell? this is an example of what type of molecular movement?
Answers: 1
Biology, 23.06.2019 01:30
Amineral crystallizes from magma deep inside earth. which characteristics can be determined given only the information above. a) luster b) streak c) crystal size d) crystal structure
Answers: 1
The mutation rate in bacteria is about 3 nucleotide changes per 10 billion nucleotides per cell gene...
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