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patriot [66]
3 years ago
11

After the bank robbery, the very frightened people probably experienced increased activation of the sympathetic nervous system,

stimulation of the adrenal medulla, and the release of the hormone(s) called:
Biology
1 answer:
nata0808 [166]3 years ago
7 0
The answer is Adrenaline

Adrenaline is a stress hormone secreted by the adrenal glands and some other neurons when a person is frightened, excited or generally in stress.

It prepares our body for it's 'fight or flight' mechanism and tightens muscles for exertion.

After a bank robbery, most people feel a rush of adrenaline.
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Read 2 more answers
Free earlobes are dominant over attached earlobes. What is the probability that a woman with attached earlobes (homozygous reces
AVprozaik [17]
<h2>The correct answer is explained below:</h2>

Explanation:

  • According to the question, free ear lobes are dominant over attached ear lobes.
  • Let the allele for free ear lobes be represented by F.
  • Let the allele for attached ear lobes be represented by f.
  • The genotype of the homozygous recessive woman (mother) having attached ear lobes is : ff.
  • The gamete produced by the woman is: f.
  • The genotype of the heterozygous man (father) with free earlobes is: Ff.
  • The gametes produced by the man are: F and f.
  • Mating the man with the woman we get the following offspring,

                                        F                                            f

                           f           Ff                                          ff

          Phenotype      Free ear lobe                   Attached ear lobe

  • The genotype and the phenotype of the probable children obtained is represented in the Punnett square above.
  • The probability that the parents would produce children with attached ear lobes is = \frac{1}{2} .
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3 years ago
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