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borishaifa [10]
3 years ago
14

Identify two earliest inhabitants of Kenya​

Biology
1 answer:
schepotkina [342]3 years ago
5 0

Answer:

i hope it helps

mapriend

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All of the following is leading to less habitable land for human populations except…
grandymaker [24]

Answer:

Scarcity of freshwater.

Explanation:

8 0
2 years ago
Which of the following is an example of potential rather than kinetic energy?A) water rushing over Niagara FallsB) light flashes
ladessa [460]

Answer:

a molecule of glucose is an example of potential energy

Explanation:

potential energy and kinetic energy

A) water rushing over Niagara Falls ====kinetic energy

B) light flashes emitted by a firefly    ====kinetic energy

C) a molecule of glucose                  ====potential energy

D) a crawling beetle foraging for food====kinetic energy

4 0
3 years ago
The photograph below shows some plant cells as seen under a light microscope.
disa [49]

The picture from another source is attached

Answer:

Staining

Explanation:

In order to make cells or certain features of a cell more visible under the microscope, scientists use specific stains. These stains bind to certain features in a cell, allowing better distinction. For example, iodine is a common stain used in plant cells, as it turns blue/black in the presence of starch, which is abundant in plant cells.

8 0
2 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
Why are these studies effective for testing a drug that may elevate mood and relieve feelings of depression?
Crazy boy [7]
<span>B)Double-blind studies are ways to ensure that only the researcher can figure out who is getting the effective drug. This is to help and maintain the objectivity of the study especially because since it concerns humans as test subjects. Moreover, it is also to avoid biases and errors which can be elicited by either the researcher himself or the participants. </span>
6 0
2 years ago
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