
Nitrogen-fixing bacteria fix atmospheric nitrogen to ammonia, which can then be taken up by plants.
- The process is called biological nitrogen fixation.
- Rhizobium, Azotobacter, cyanobacteria are some examples of nitrogen-fixing bacteria, which may be free-living or symbiotic.
D.
The nurse would maintain a separate access line if IV solutions or medications are to be administered. Medication is never injected into the same IV line used for a blood component. The blood product may be incompatible with the medication, and the blood component could become contaminated if the same IV line is used for another purpose.
Answer:
The constant improvement of the microscopes have resulted in the revisions in the cell theory because with each improvement some new detail about the cell structure is revealed by the microscopes. These new improvements led to the change sin the cell theory
Explanation:
Answer:
a- brown eyes
b- blue eyes
c- brown hair
d- widows peak
e-short arms
f- can roll tongue, long arms
g- brown eyes, brown hair
h- widows peak, short arms
i- brown eyes, can roll tongue
j- brown eyes, brown hair, no widows peak, long arms, can't roll tongue
Explanation:
So the capital letter is the dominant trait, and the lowercase letter is recessive. The capital dominant trait will always overpower the lowercase recessive trait. So the only way the recessive trait can be seen is if there are two together. So... if R is white fur and r is brown fur...
RR would show the dominant trait of white fur
Rr would show the dominant trait of white fur
rr would show the recessive trait of brown fur
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Answer:
The correct option is <em>E. Amino acids (and thus proteins) also have nitrogen atoms; thus, the radioactivity would not distinguish between DNA and proteins.</em>
Explanation:
The element phosphate is actively present in the DNA but it is not present in the proteins.
Nitrogen is an active constituent of the DNA as well as the proteins. Hence, if nitrogen will be used for the Hershey and Chase experiment, then the results will that we will get will be wrong. We wouldn't be able to distinguish between the nitrogen atoms which came from the DNA and the nitrogen atoms which came from amino acid or proteins.