Neurotransmitters and Ion Channels Quiz

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What effect do chemical changes that tighten chromatin complexes have on genes?

Activate genes

Mutate genes

Duplicate genes

Shut down genes (correct)

How do neurons achieve flexibility in altering gene expression?

By permanent gene modifications

Through irreversible chemical changes

By duplicating chromatin

Via reversible changes in chromatin complexes (correct)

What do gene variants or alleles reflect?

Differences in nucleotide sequences (correct)

Differences in neuron size

Differences in neuron color

Differences in neuron function

How do different alleles code for forms of the same protein?

By differing in nucleotide sequences Signup and view all the answers

What can specific alleles of some genes cause?

Neurological diseases Signup and view all the answers

Which disorder is caused by mutations in a gene coding for beta-hexosaminidase A?

Tay-Sachs disease Signup and view all the answers

How does the variant enzyme in Tay-Sachs disease impact neurons?

Becomes toxic due to fat buildup Signup and view all the answers

What will the ability to sequence a person's entire genome help with in the next 10 years?

Understanding the genetic basis of brain disorders Signup and view all the answers

What determines whether neurons have excitatory or inhibitory effects in their circuits?

Assortments of neurotransmitter receptors Signup and view all the answers

What influences neuronal behavior by being capable of detecting neuromodulators like vasopressin and cortisol?

Cell membranes Signup and view all the answers

What process determines differences among neurons based on which genes direct cellular activities?

Gene expression Signup and view all the answers

In which regions are unexpressed genes typically found within a neuron's cell membrane?

Tightly packed regions Signup and view all the answers

What determines the cells' sensitivity to the effects of specific neurotransmitters?

Assortments of neurotransmitter receptors Signup and view all the answers

What area of research is focused on mechanisms causing neurons to express some genes and not others?

Chromatin changes Signup and view all the answers

What do neurons build proteins from, resulting in differences among them?

Different subsets of genes Signup and view all the answers

What do cells in the body, including neurons, contain that house the same genes?

DNA Signup and view all the answers

What influences neuronal behavior by hormones such as vasopressin, estradiol, or cortisol?

Neuromodulators Signup and view all the answers

What influences the sensitivity of cells to specific neurotransmitters?

Different assortments of neurotransmitter receptors Signup and view all the answers

Neurotransmitters and Ion Channels Quiz

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Questions and Answers

What effect do chemical changes that tighten chromatin complexes have on genes?

How do neurons achieve flexibility in altering gene expression?

What do gene variants or alleles reflect?

How do different alleles code for forms of the same protein?

What can specific alleles of some genes cause?

Which disorder is caused by mutations in a gene coding for beta-hexosaminidase A?

How does the variant enzyme in Tay-Sachs disease impact neurons?

What will the ability to sequence a person's entire genome help with in the next 10 years?

What determines whether neurons have excitatory or inhibitory effects in their circuits?

What influences neuronal behavior by being capable of detecting neuromodulators like vasopressin and cortisol?

What process determines differences among neurons based on which genes direct cellular activities?

In which regions are unexpressed genes typically found within a neuron's cell membrane?

What determines the cells' sensitivity to the effects of specific neurotransmitters?

What area of research is focused on mechanisms causing neurons to express some genes and not others?

What do neurons build proteins from, resulting in differences among them?

What do cells in the body, including neurons, contain that house the same genes?

What influences neuronal behavior by hormones such as vasopressin, estradiol, or cortisol?

What influences the sensitivity of cells to specific neurotransmitters?

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