Answer:
One type of control that occurs at the DNA level is the regulator genes. The regulator genes synthesize a repressor molecule that binds to the operator and stops transcription of the structural genes. Whenever there is enough amount of structural genes made, a repressor molecule will bind to the operator region and stop further transcription.
One type of control that occurs at the RNA level is RNA splicing. By this method, different proteins can be made by a single RNA transcript.
The answer is <span>Take consistent amounts of saliva samples from a number of people who have not eaten in 8 hours and measure the quantity of amylase in each sample.
First, the researcher needs to know the quantity of amylase in the <u>same</u> amount of saliva. Thus the amount must be consistent and not varying.
Next, people must not eat in 8 hours, so they are all in the same condition at the moment of collecting saliva. If some eat immediately before the sample collecting while some eat 8 hours before, the content of their saliva will be different.
For the correct results, all conditions must be the same.</span>
Answer:
water
Explanation:
in poor soil most of the water would get sucked up into more powerful plants [larger plants]
There are different types of pathogens, but we're going to focus on the four most common types: viruses, bacteria, fungi, and parasites. (:
Answer:
C) All DNA has the same structure, so the modeled DNA could be found in any living organism.
Explanation:
The DNA is the abbreviation for deoxyribonucleic acid. all the living organisms have DNA as their hereditary material. The DNA is consist of nucleotides. The nucleotide are the combination of deoxyribose sugar, nitrogenous base and phosphate ion. The nucleotide unit is same in the DNA of all the organism including bacteria. The bases adenine, cytosine, guanine and thymine is present in all type of organism. The sequential arrangement of the bases determine the character of the organism.
