1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
2 years ago
7

Buffers are chemicals that do all of the following except...?

Biology
1 answer:
Andrew [12]2 years ago
4 0
D - Allow pH to change drastically.

The reason that we have buffer in our system is to protect AGAINST sudden change of pH
You might be interested in
Choose the correct sequence of the prokaryotic operon. A) gene, operator, promoter B) promoter, operator, gene C) operator, prom
Harrizon [31]

Answer:

The correct answer is option B, that is, promoter, operator, gene.

Explanation:

In a prokaryote, just in front of the operator, the promoter is located, and just in front of the structural genes, the operator is located. All these in combination give rise to an operon.  

Any gene, which codes for an enzyme or a structural protein is termed as a structural gene, in the lac operon, a structural gene codes for three distinct kinds of enzymes. A short sequence of DNA is situated just in front of the structural gene, which is known as the operator. An operator functions as a switch for transcription, that is, it monitors whether the process of transcription will take place or not.  

Just in front of an operator, a sequence of a promoter is present, and for the transcription and translation of all the structural genes, the RNA polymerase needs to combine first with the promoter. In case, if no transcription is to take place, then the operator allows the repressor to bind with it and prevent the attachment of RNA polymerase with the promoter. Hence, the correct sequence of a prokaryotic operon is a promoter, operator, and gene.  

4 0
2 years ago
Which words or phrases describe slate? Check all that apply.
mezya [45]
A,c,e that’s the answers
8 0
2 years ago
How does gene expression lead to differentiation
ExtremeBDS [4]
Every cell of the organism has the same DNA sequence and same genes. However, not all genes are expressed in every single cell at the same time. Only those genes necessary for a specialised function of a specialised cell are expressed in the specialised cell. For example, skin cells have some different proteins than nerve cells. Genes responsible for those "skin proteins" are activated in skin cells and are turned off in nerve cells.
3 0
3 years ago
Progression through the cell cycle requires a cyclin to bind to a cdk because __________.
Studentka2010 [4]
Is there multiple choices?
6 0
3 years ago
Read 2 more answers
Two short-haired guinea pigs are mated several times. Out of 100 offspring, 25 of them have long hair. What are the probable gen
Alekssandra [29.7K]

Answer:

Ss (male) × Ss (female)

Explanation:

This question involves a single gene coding for hair length in guinea pigs. Based on the information in this question, the allele for short hair (S) is dominant over the allele for long hair (s). This means that a guinea pig will only be phenotypically long-haired if the genotype is "ss".

According to this question, Two short-haired guinea pigs are mated several times. Out of the 100 offsprings produced by this cross, 25 of them have long hair (recessive). This means that the phenotypic ratio of this cross is 3 short hair : 1 long hair i.e. 100 - 25 = 75 short hair. 75/25 = 3/1 = 3:1

To produce this phenotypic ratio, the parents must both be heterozygous (Ss) for the hair length gene.

3 0
3 years ago
Other questions:
  • Why does the number of phagocytes and lymphocytes in the body increase during an infection?
    12·1 answer
  • The digestive system is an example of what level of organization
    13·1 answer
  • I need help writing sentences with these words they are science related :) (4th grade)
    11·1 answer
  • A DNA strand having a nitrogen based sequence of TAA GGA TCG AAC will produce and Mrna strand having a nitrogen base sequence of
    14·1 answer
  • Which type of genetic variation is shown below?
    9·1 answer
  • Barbara has curly hair. Her genotype for this trait is CC. What do you infer from this?
    8·2 answers
  • Why is it important that we take precautions against the coronavirus spread?
    11·1 answer
  • Which of the following could be use to tell the difference between a living thing in the domain bacteria and one in the domain e
    6·1 answer
  • Question 11: After conducting research, does your conclusion need revision? Why? Support your
    13·1 answer
  • The heat absorbed/added to the material causes the material to change its form from?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!