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DerKrebs [107]
3 years ago
5

Why are identical twins not considered clones?

Biology
1 answer:
CaHeK987 [17]3 years ago
4 0
Identical twins could not be considered as clones for they are different individuals which came from the same egg and sperm. Clones are produced asexually, a copy of another organism. Even though identical twins share the same DNA, they have different qualities as of the other twin which makes them their own unique self. 
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Adaptive defenses include humoral immunity only. Memory B cells areproduced as soon as the B cell binds to an antigen. Adaptive
Rina8888 [55]

Answer:

Adaptive defenses include both humoral and cellular immunity.

Explanation:

The innate immune response is the non-specific immune response and serves to provide an immediate and general immune response. The adaptive immune responses are the specific immune responses. Adaptive immune responses include cell-mediated immunity and antibody-mediated immunity.

Cell-mediated immunity includes T cells (cytotoxic and helper T cells) while antibody-mediated immunity includes the production of antibodies from B cells. Binding of antigen to B cells is followed by their transformation into plasma cells and produce antibodies. Some of the activated B cells form memory B cells that are responsible for quicker and strong secondary immune responses.

5 0
3 years ago
What did the Hershey and chase experiment show about bacteriophages?
Iteru [2.4K]

Answer:

The correct answer is A  bacteriophages inject only DNA into the bacteria.

Explanation:

Bacteriophages are a specific type of virus that infect bacteria.During the course of infection bacteriophage releases an enzyme known as lysozyme which creates a hole in the cell wall of the bacteria.

   After doing that(creating a hole) bacteriophage inject its DNA inside the bacterium.

   The injected DNA undergo gene expression by utilizing the gene expression machinery of bacteria which ultimately result in the formation of coat protein.The DNA is then packed within the coat protein to form progeny phages.The progeny phages then disrupt the cell wall and get released from the bacterium in search of a new host.

4 0
2 years ago
The rock pocket mouse and human skin color are examples of evolution in that they both?
Crazy boy [7]
A have the MC1R gene and melanin deference
5 0
2 years ago
A 51-year-old woman who was born congenitally blind and deaf is able to distinguish individuals by a light touch of the individu
icang [17]

Answer:

The correct answer will be option-B

Explanation:

Meissner corpuscles are one of four types of mechanoreceptors which response to mechanical pressure.

The corpuscles are very adaptive and sensitive receptors which convert the stimuli to action potential and send them to the Central nervous system.

The corpuscles are found in the areas which are exposed to touch or are sensitive to touch like in the fingers of the hand and the lips.

Since the deaf and blind lady distinguishes people with a light touch, therefore, these Meissner corpuscles are involved in helping identify the individuals.

Thus, Option-B is the correct answer.

5 0
3 years ago
What is the name of the scientific study of the ocean?
Svetach [21]

Explanation:

oceanography

4 0
2 years ago
Read 2 more answers
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