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Ann [662]
3 years ago
6

Please help me out- ;-;

Biology
2 answers:
Ksenya-84 [330]3 years ago
8 0

Answer:

b. testing new conditions.......

il63 [147K]3 years ago
6 0
It is D) determining explanations

Explanation:

After scientists conduct experiments and analyze data, conclusions are made on whether it matches up with their hypothesis.
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<u>Claim</u>: Various factors can tree frogs to change color, such as outdoor temperature, brightness of light and moistness of the air.

<u>Evidence:</u>  According to the National Wildlife Foundation "Tree frogs can be a variety of colors, but most of the species found in the United States are green, gray, or brown. Some of them, like the squirrel tree frog (Hyla squirella), are chameleon-like in their ability to change color."

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Explanation:

To answer these types of questions you just go through it as a process step by step.

4 0
3 years ago
You've discovered a gain-of-function mutant E. coli strain that makes red colonies on plates containing normal minimal medium; w
Komok [63]

Answer:

The correct answers are options

B. "Sequencing reagents, such as dNTPs, ddNTPs, and DNA polymerase".

C. "A computer to blast the base pair sequence of the bacterial genomic insert against the genome sequence of your E. coli strain".

F. "An E. coli genomic library made from the mutant strain".

I. "A sequencing primer that hybridizes adjacent to the insertion site of the bacterial genomic fragment in the library plasmids, and pointing in the 5'-to-3' direction towards the bacterial genomic DNA insert".

Explanation:

Plasmid library transformation approaches are very useful to characterize novel mutant bacterium strains. In order to perform a characterization study of this kind, several reagents and tools are needed, including:

- "Sequencing reagents, such as dNTPs, ddNTPs, and DNA polymerase". One important part of knowing what makes novel mutant bacterium different is to sequencing its DNA.

- "A computer to blast the base pair sequence of the bacterial genomic insert against the genome sequence of your E. coli strain". BLAST is a useful computer tool that compares and aligns DNA sequences, this allows to detect what are the nucleotides that are unique in the novel mutant bacterium.

- "An E. coli genomic library made from the mutant strain". Once DNA has been sequenced, an genomic library must be constructed to ensure that this novel mutant is preserved.

- "A sequencing primer that hybridizes adjacent to the insertion site of the bacterial genomic fragment in the library plasmids, and pointing in the 5'-to-3' direction towards the bacterial genomic DNA insert". Sequencing primers are needed when new genomic libraries are constructed. This short DNA sequences allow DNA polymerase to synthesize the DNA an replicate the genome of interest.

6 0
3 years ago
What is the function of the tissues indicated by the arrow?
loris [4]
I believe that it's letter A
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