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nlexa [21]
3 years ago
8

Next the researchers repeated the experiment in part c but instead of mixing the ax and ay strains, they put one strain on each

side of a glass u-tube. the u-tube contains a glass filter between the two strains of bacteria that prevents the cells from interacting directly. on which type(s) of media would you expect cells from the ay side of the u-tube to grow?
Biology
1 answer:
Nadya [2.5K]3 years ago
5 0
The correct answer is none of the above.

Bacterial cells can transfer genetic material through a process called bacterial conjugation. This process involves the direct physical contact of the bacterial cells and a horizontal gene transfer. The genes which are transferred are most of the times beneficial for the recipient, such as genes for antibiotic resistance.

In this example, bacterial cells cannot have physical contact, since they are separated by a glass filter. Therefore, the bacterial conjugation cannot happen. Given that no gene transfer can be achieved, the AY strain remains bio- trp- and is unable to grow on any medium that lacks bio or/and trp. 
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victus00 [196]

Answer:

A: Unlike DNA, XNA replicates conservatively

Explanation:

<em>The replication of the DNA is </em><em>semi conservative.</em><em> This means that newly replicated double helix DNAs usually consist of one parental strands and one newly synthesized strands. The parental DNA unwinds and each strand serves as template for the synthesis of complementary strands.</em>

In the case of XNA, the two strands of parental XNA were found intact, meaning that the newly produced XNA consist of two newly synthesized strands. This thus means that the replication process is conservative.

Hence, unlike DNA replication that is semi conservative, XNA replication is conservative.

8 0
3 years ago
How does CO affect the earth climate
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Answer:

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8 0
3 years ago
Investigator A has biological specimens that are coded and linked to identifiers of the source individuals. Investigator A provi
ladessa [460]

Answer:

The correct answer is option C.

Explanation:

Human subject research is an investigation or research that include human as the subject. In other words, An Investigator conducts clinical research on humans getting data through interaction and intervention of individuals.

investigator A has investigated biological specimens. These specimens are coded and linked to the identifiers. Investigator B's research using biospecimens human subject is not according to the human subject research in the federal regulations as investigator B did not get the individual identifiers.

Thus, the correct answer is option C.

7 0
3 years ago
Which of the following would you experience if you could travel from the outer core to the inner core? A: a change from solid to
bearhunter [10]

Answer:

<u>B</u>

Explanation:

If you could travel from the outer core to the inner core, the change you are most likely to experience will be <u>an increase in temperature</u>.

8 0
2 years ago
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valina [46]

Answer:

B Respiration

Explanation:

or cellular respiration

Hope this helps you have great dayyyy

8 0
3 years ago
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