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Hunter-Best [27]
4 years ago
12

When an antigen is bound to a class i mhc molecule?

Biology
1 answer:
Ivenika [448]4 years ago
6 0
When that situation happens then it can stimulate a cytotoxic T cell. This types of cells are the ones directly responsible for cellular immunity. Cytotoxic T cells can attack target cells by secreting a cytokine that triggers apoptosis which is <span>the death of cells which occurs as a normal and controlled part of an organism's growth or development.</span>
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What does the skeletal part of the musculoskeletal system do? Why is 'protects the organs of the body' correct?
Alexxx [7]

Answer:

The bones of the skeletal system protect the body's internal organs, support the weight of the body, and serve as the main storage system for calcium and phosphorus. The muscles of the muscular system keep bones in place; they assist with movement by contracting and pulling on the bones.

Explanation:

8 0
3 years ago
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Speckled trout and red drum both prey on mullet along the Texas coastline. Dead zones are caused by excessive nutrient pollution
Andreas93 [3]

Answer:

whats the answer

Explanation:

8 0
3 years ago
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A small group of diploid triangular Sticky Notes were fluttering along the coast of The Mainland. A storm blew in and blew the S
muminat

Answer:

Because genetic drift (Founder effect) is acting on this population. Not all the Hardy weinberg criteria are accomplished. There are no random matings and populations are finite-sized.

Explanation:

This is a special case of genetic drift: the founder effect.

The “Founder effect” phenomenon refers to cases where a new population originates from a few founder individuals, coming from a bigger ancestral population, that established in a new environment. This small population might or might not be genetically representative of the original one. This subgroup carries with them some genetic information that they share with their original population. Over time, some genes can be lost, or they can increase in frequency. Some rare alleles might be exceeded or might be completely lost. On Consequence, when the small population grows, it will have a genetically different composition from the original one. In these situations, genetic variability is reduced and enhances the possibility of developing a peculiar allelic composition. In some cases, the founder effect is part of the process of speciation.  

The criteria for maintaining a Hardy-Weinberg equilibrium are:  

  • Random matings
  • No superposed generations
  • No mutations
  • No migration  
  • Infinite population size
  • No natural selection

Genetic drift involved the un-accomplishment of random matings and infinite population sizes.

Genetic drift involves:

  • limited population sizes
  • individuals reproduce by endogamy/exogamy, and matings occur by phenotype.

5 0
3 years ago
Why does the moon turn red during a total lunar eclipse?
vagabundo [1.1K]

Answer:

In the case of a lunar eclipse, red light can pass through the Earth's atmosphere and is refracted - or bent - toward the Moon, while blue light is filtered out. This leaves the moon with a pale reddish hue during an eclipse.

mark me brainliestt :))

3 0
3 years ago
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Study the diagram. An ocean with points labeled 1 through 6. Water level scale is on the left, from 0 kilometers to 15 kilometer
charle [14.2K]

Answer:

i think its a hurricane but im not sure i tried

4 0
3 years ago
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