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4.Monohybrid Cross: Count the yellow and purple kernels for 3 ears of corn from the “3:1” collection. These are the result ...

ion. These are the result of a monohybrid cross (two heterozygous parents) and we expect a ratio of 3 dominant phenotypes to 1 recessive phenotype.
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5.In mice, grey coat colour, G, is dominant to white, g, and long tail, T, is dominant to short tail, ...

t. What is the genotypic and phenotypic ratio if a female mouse that is heterozygous for colour and short-tailed is crossed with a male mouse that is homozygous dominant for colour and is heterozygous for tail length?
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6.I was looking at my notes on protein structure and I am trying to understand quaternary structures for proteins. I ...

or proteins. I understand that primary, secondary, and tertiary structures are encoded by one gene each. However, I am not entirely sure if quaternary structures are encoded by one or multiple different genes. The reasons why I am a little confused is for two reasons. Firstly, quaternary structures are made up of more than one protein subunit (i.e. multiple polypeptides). Secondly, as I understand, Hemoglobin, for example, has different subunits, each of which is encoded by a different gene. Does this necessarily mean that all quaternary structures are composed of proteins encoded from different, separate genes? If quaternary subunits are encoded by different, separate genes, can those different genes be located on different loci, or are all of the subunits necessarily encoded by the different gene but its mRNA molecule is spliced differently?
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7.Monohybrid Cross: Count the yellow and purple kernels for 3 ears of corn from the “3:1” collection. These are the result ...

ion. These are the result of a monohybrid cross (two heterozygous parents) and we expect a ratio of 3 dominant phenotypes to 1 recessive phenotype. II. Test Cross: Count the yellow and purple kernels for 3 ears of corn from the “1:1” collection. These are the result of a test cross (two heterozygous parents) and we expect a ratio of 1 dominant phenotype to 1 recessive phenotype. III. Dihybrid Cross: Count the kernels for 3 ears of corn from the “9:3:3:1” collection. These are the result of a dihybrid cross (two heterozygous parents for two traits) and we expect a ratio of 9 dominant/dominant: 3 dominant/recessive: 3 recessive/dominant: 1 recessive/recessive.
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Trauma and injury to the nervous system: 

 

When the normal functioning of the brain is disrupted because of various types of injuries by hitting some objects on the brain and spinal cord. The damage can be mild, moderate, and severe.

 

Trauma and injury to the nervous system Sample Questions:

 

Question 1: When the blood clot between the dura matter it is called?

 

Answer: Hematoma.

Explanation: The blood starts accumulating in the dura matter and arachnoid layer. It can be because of any injury in the skin. 
 

 

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Question 2: What is called when there is not a sufficient quantity of blood in the brain?

 

Answer: Ischemia.

Explanation: It is the decrease of blood flow in the brain and causes various adverse effects in the brain. 

 

 

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Question 3: Is brain death is reversible?

 

Answer: No, it is not.

Explanation: When there is no activity is seen in the brain related to heart failure as well.

 

 

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Question 4: What is called dizziness after a brain injury?

 

Answer: Vertigo.

Explanation: Vertigo is mainly caused by injury in the brain and thus leads to headaches and loss of sensation. 

 

 

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Question 5: The condition that causes the problem of movement. 

 

Answer: Parkinson s disease.

Explanation: The muscles become rigid and lead to slow movement of the body

 

 

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Question 6: What happens in cerebrovascular diseases?
 

Answer: Abnormal functions of the brain because of the pathologic process in the blood vessels.

Explanation: Hemorrhage can occur in this and mainly denotes to stroke in the brain.

 

 

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Question 7: What happens in basilar skull fractures?

 

Answer: Bones are fractured in it which are present at the base of the brain.

Explanation: In this type of fracture air and fluid enter into the brain, which causes various types of infection.

 

 

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Question 8: What is a computed tomography scan?

 

Answer: It detects the deformity in the brain by the degree of x-ray absorption by the soft tissue of the barin.

Explanation: CT scan helps in the detection of edema in the brain and hemorrhage at various places.

 

 

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Question 9: What is magnetic resonance imaging?


Answer: MRI is the imaging of the different parts of the brain.

Explanation: It helps in the study of the brain as a whole so that it detects various injuries and can able to identify the diagnostic measures. 
                                                                                                          

 

 

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Question 10: What is TBI?

 

Answer: Traumatic brain injury.

Explanation: It is defined as when the brain is severely injured that the injury penetrates deep into the brain and leads to unsettling various functions.

 

 

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