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Vlada [557]
3 years ago
8

​____ allow bacteria to join together to transfer genes.

Biology
1 answer:
anzhelika [568]3 years ago
7 0
The answer is pilus. This structure joins two bacteria of same species and allow exchange of genetic material in a process called horizontal gene transfer (conjugation). The plasmid of one of the bacteria (the mobile plasmid) is nicked once and the strand moves through the pillus to the other bacteria. It combines with the other plasmid or chromosome to for recombinant dna.
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OBSERVATION is first step, so that you know how you want to go about your research. HYPOTHESIS is the answer you think you'll find. PREDICTION is your specific belief about the scientific idea: If my hypothesis is true, then I predict we will discover this. CONCLUSION is the answer that the experiment gives.

The scientific method is an empirical method of acquiring knowledge that has characterized the development of science since at least the 17th century (with notable practitioners in previous centuries). It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation. It involves formulating hypotheses, via induction, based on such observations; experimental and measurement-based testing of deductions drawn from the hypotheses; and refinement (or elimination) of the hypotheses based on the experimental findings. These are principles of the scientific method, as distinguished from a definitive series of steps applicable to all scientific enterprises.

1 Make an observation.

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3 years ago
The largest type of carbohydrate molecule is a polyacrylamide, which is composed of many monosaccharide sub-units. An example of
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3 years ago
(a) What cell structures best reveal evolutionary unity?
xeze [42]

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The correct answer will be-

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<u>Case I </u>

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<u>Case II </u>

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