_____ is triggered by degeneration of dopamine-producing neurons in the brain.

1 answer:

5 0

Parkinson’s disease is triggered by degeneration of dopamine-producing neurons in the brain. Parkinson's disease is a neurodegenerative disease of the CNS resulting from degeneration of dopamine-producing neurons in a region of the midbrain called the substantia nigra. Some of the factors that induce this disease are oxidative stress, inflammation, and dysfunctional mitochondria. The disease is progressive including characteristic symptoms such as tremors, muscle rigidity, loss of coordination bradykinesia (slowness and difficulty with movements), sleep disturbances...

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Mitochondria convert

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Answer:

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so it's 2nd (light to glucose)

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In humans, the pelvis and femur bone, are involved in walking. In whales, the pelvis and femur bones would be an example of?

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C. Vestigial structures

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The majority takes place in the small intestine

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Which characteristic help the Grants show the result of natural selection?

Talja [164]

I believe this is the answer you are looking for:

C. The size and shape of their beaks

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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.

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