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viktelen [127]
3 years ago
15

Correctly order the steps involved cellular immunity:

Biology
1 answer:
REY [17]3 years ago
5 0

Answer: B

Explanation:

The T helper cell needs to acttivate the T cyctotoxic cell in order for the Tc cell to go do its work.

Once the TC cell is active it interacts with MHC-1 proteins on the surface of the infected host cell, this allows the Tc cell to recignise the host cell and begin secreting cytotoxins (perforins and granzymes) in order to degrade the infected cell and cause apoptosis (controlled cell death)

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. You have constructed four different libraries: a genomic library made fromDNA isolated from human brain tissue, a genomic libr
aksik [14]

Answer:

A) Brain genomic library and muscle genomic library.

B) Brain genomic library and muscle genomic library - overlap completely.

Human brain cDNA library, and a human muscle cDNA library and other library is partially overlap.

Explanation:

A) The genomic library contains the whole genome content of the organism whereas cDNA library contains the coding genome of the organisms. Brain genomic library and muscle genomic library will constitute the all the genomic sequences of brain and muscle.  The cDNA library is prepared from the mRNA and the coding regions are present in this library.

B) The overlapping in the genome library might occur due to the common sequences present in the genome. Brain genomic library and muscle genomic library might completely overlap with each other as they have more sequence common among each other. All the other library may be partially overlap with each other as they have some common DNA sequences and neither library can have unique sequences.

7 0
3 years ago
4. What factors might affect bone strength?
sattari [20]

Answer:

Bone strength is influenced by changes in the structure (size and shape) and composition [cortical (compact) bone, trabecular (sponge-like) bone, amount of cartilage] of the bone. 6 A high peak mass at a young age and the decrease of bone loss at a later age are two ways to reduce osteoporosis risk.

Explanation:

7 0
2 years ago
Read 2 more answers
Describe the relationship between the reactants and products of photosynthesis and cellular respiration.
Leni [432]
The reactants of photosynthesis are carbon dioxide and water, meaning during photosynthesis carbon dioxide and water are taken in to create energy. The reactants of cellular respiration are glucose (sugar) and oxygen, these are taken in by animals and humans to produce energy.
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-
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Explanation:
The end products of Photosynthesis are starting products(reactants) of Respiration.
End products of Respiration are starting products(reactants) of Photosynthesis
7 0
3 years ago
Which of the following stars correctly shows the relationship between force from fusion and force of gravity in a Main Sequence
Gemiola [76]

Answer:

E

Explanation:

E

3 0
2 years ago
Reflexión de la discriminación
Marat540 [252]

Answer:

aver la discriminación es un tema serio un ejemplo fácil es decir yo odio a alguien porque le gusta algo que ami no y también el ser humano no le gusta lo diferente pasaba en los antiguos tiempos que escribir con la izquierda era algo malo o el racismo que sigue vigente hasta estos días miren todos somos iguales nuestra sentrañas son iguales nuestro corazón es igual

Explanation:

vamos te lo dice sans el esqueleto esto es más cierto que Cristo existe

4 0
3 years ago
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