Biology Chapter on Genetics and Consciousness
38 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the likelihood of a child inheriting a recessive gene?

  • 50%
  • 25% (correct)
  • 0%
  • 100%
  • Crossing over during reproduction results in:

  • No change in gene expression
  • Genes being completely separated
  • Identical genes being passed to offspring
  • New combinations of genes in offspring (correct)
  • Sex-linked genes are unique because they are:

  • Always dominant over other genes
  • Only present in females
  • Located on the X and Y chromosomes (correct)
  • Never expressed in offspring
  • What contributes to variation in offspring?

    <p>Both mutations and recombination (C)</p> Signup and view all the answers

    Which of the following is NOT a source of variation?

    <p>Gene dominance (B)</p> Signup and view all the answers

    Which of the following is NOT a type of monism?

    <p>Dualism (D)</p> Signup and view all the answers

    What is the name of the problem related to why and how brain activity is associated with consciousness?

    <p>The Hard Problem (B)</p> Signup and view all the answers

    Who proposed that the mind and brain interact in the pineal gland?

    <p>René Descartes (A)</p> Signup and view all the answers

    Which of the following is an example of an 'easy' problem of consciousness?

    <p>Determining the difference between wakefulness and sleep (D)</p> Signup and view all the answers

    What is the term used to describe a pair of genes that are identical on two chromosomes?

    <p>Homozygous (B)</p> Signup and view all the answers

    Why is it difficult to research consciousness?

    <p>Consciousness is not directly observable (D)</p> Signup and view all the answers

    A strand of DNA that contains a sequence of bases and controls the development of an organism is called a...

    <p>Gene (C)</p> Signup and view all the answers

    What is the term used to describe the expression of a gene pair?

    <p>Genotype (A)</p> Signup and view all the answers

    What does solipsism mean?

    <p>The belief that only I exist (C)</p> Signup and view all the answers

    Which of the following is NOT a property of genes?

    <p>Genes are always expressed in pairs. (D)</p> Signup and view all the answers

    How does the identity theory describe the relationship between mental processes and brain processes?

    <p>They are different descriptions of the same thing (D)</p> Signup and view all the answers

    Which philosopher argued that solving the Easy Problems of consciousness would make the Hard Problem go away?

    <p>Daniel Dennett (C)</p> Signup and view all the answers

    What is the difference between a dominant and a recessive gene?

    <p>A recessive gene can only produce a certain trait if both copies of the gene are present. (B), A dominant gene always produces a certain trait, even if only one copy of the gene is present. (C)</p> Signup and view all the answers

    If one parent has brown eyes (BB) and the other parent has blue eyes (bb), what is the possible eye color of their offspring?

    <p>Only brown eyes (C)</p> Signup and view all the answers

    What is the function of RNA in the process of protein synthesis?

    <p>RNA carries genetic information from the nucleus to the ribosomes, where protein synthesis takes place. (A)</p> Signup and view all the answers

    What is the term for the combination of genes that an individual carries?

    <p>Genotype (C)</p> Signup and view all the answers

    What is the defining characteristic of evolution?

    <p>Changes in the frequency of genes within a population across generations (A)</p> Signup and view all the answers

    Which of the following is a misconception about "survival of the fittest" in evolution?

    <p>Survival is more important than reproduction in the evolutionary process (A)</p> Signup and view all the answers

    What is a key concept of sociobiology/evolutionary psychology?

    <p>Determining how behavior aids in survival and reproduction (A)</p> Signup and view all the answers

    Why does sociobiology consider the sleep cycle?

    <p>To understand the evolutionary purpose of stages of sleep (C)</p> Signup and view all the answers

    Which of these is NOT a common example used by evolutionary psychology?

    <p>The relationship between brain size and intelligence in humans (C)</p> Signup and view all the answers

    According to sociobiology, how is altruistic behavior explained?

    <p>As a behavior that ultimately increases the individual's reproductive success (C)</p> Signup and view all the answers

    What is the common misconception behind "Lamarckian evolution"?

    <p>Individuals can inherit traits acquired during their lifetime (A)</p> Signup and view all the answers

    Which of the following professionals works with patients who have brain damage but does not perform surgery?

    <p>Neuropsychologist (A), Neurologist (B)</p> Signup and view all the answers

    Why is the statement "evolution means improvement" considered incorrect?

    <p>Evolutionary changes can sometimes lead to traits that are detrimental (D)</p> Signup and view all the answers

    A behavioral neuroscientist is most likely to study...

    <p>How brain function affects behavior (B)</p> Signup and view all the answers

    What is the primary focus of a neuropsychologist's work?

    <p>Assessing and treating cognitive and behavioral deficits caused by brain damage (A)</p> Signup and view all the answers

    Which professional is responsible for managing the medication used to treat mental illnesses?

    <p>Psychiatrist (C)</p> Signup and view all the answers

    Which of these is NOT a reason for animal research?

    <p>Determining the best treatment plan for animals. (D)</p> Signup and view all the answers

    How does the brain of different species relate to each other?

    <p>The general plan and organization are similar. (B)</p> Signup and view all the answers

    Which of these is NOT a type of animal research that might be considered unethical?

    <p>Observation in the wild. (B)</p> Signup and view all the answers

    What are two contrasting positions on animal research?

    <p>Abolitionists and Minimalists. (B)</p> Signup and view all the answers

    What is a criticism of sociobiology?

    <p>It assumes a behavior is adaptive without testing it. (B)</p> Signup and view all the answers

    Flashcards

    Mind-Body Problem

    The question of how the mind and body interact and exist together.

    Dualism

    The belief that the mind and body are different substances that interact.

    Monism

    The belief that there is only one kind of existence, either material or mental.

    Materialism

    A form of monism; everything is material or physical.

    Signup and view all the flashcards

    Mentalism

    The belief that only the mind exists, dismissing physical existence.

    Signup and view all the flashcards

    Identity Theory

    The view that mental states are identical to brain processes described in different terms.

    Signup and view all the flashcards

    Hard Problem of Consciousness

    The question of why and how brain activity is linked to consciousness.

    Signup and view all the flashcards

    Solipsism

    The belief that only one's own mind is sure to exist, with uncertainty about others.

    Signup and view all the flashcards

    Mendelian Genetics

    Inheritance occurs through genes, defined by Gregor Mendel.

    Signup and view all the flashcards

    Chromosomes

    Strands of genes normally found in pairs within an organism.

    Signup and view all the flashcards

    Gene

    A unit of heredity maintaining its structural identity across generations.

    Signup and view all the flashcards

    Genotype

    The expression of a gene pair, e.g., BB, Bb, or bb.

    Signup and view all the flashcards

    DNA Structure

    DNA exists as a double strand in chromosomes and single strand for RNA synthesis.

    Signup and view all the flashcards

    Homozygous

    Having an identical pair of genes on two chromosomes (BB or bb).

    Signup and view all the flashcards

    Heterozygous

    Having an unmatched pair of genes on two chromosomes (Bb).

    Signup and view all the flashcards

    Dominant Gene

    A gene expressed in either homozygous or heterozygous condition (Bb or BB).

    Signup and view all the flashcards

    Behavioral Neuroscientist

    A professional investigating how brain function affects behavior.

    Signup and view all the flashcards

    Neuroscientist

    A scientist studying the anatomy, biochemistry, and physiology of the nervous system.

    Signup and view all the flashcards

    Neuropsychologist

    A psychologist who conducts tests to assess abilities of brain-damaged individuals.

    Signup and view all the flashcards

    Psychophysiologist

    A specialist measuring bodily processes related to activities and information processing.

    Signup and view all the flashcards

    Neurologist

    A physician treating brain damage or diseases of the brain.

    Signup and view all the flashcards

    Evolution of Behavior

    Change in gene frequencies in a population over generations.

    Signup and view all the flashcards

    Mutations

    Random changes in DNA sequences that can lead to new traits.

    Signup and view all the flashcards

    Artificial Selection

    Humans breeding animals for desired traits to ensure survival.

    Signup and view all the flashcards

    Misunderstandings of Evolution

    Common misconceptions about how evolution works, like 'survival of the fittest'.

    Signup and view all the flashcards

    Lamarckian Evolution

    The mistaken belief that traits are acquired through use; not supported by evidence.

    Signup and view all the flashcards

    Sociobiology

    Study of how social behaviors evolve through natural selection.

    Signup and view all the flashcards

    Altruistic Behavior

    Selfless acts that benefit others, explained by sociobiology as gene spreading.

    Signup and view all the flashcards

    Evolutionary Psychology

    Seeks to explain psychological traits as adaptations to survive.

    Signup and view all the flashcards

    Homozygous Dominant

    An individual with two dominant alleles (TT) for a gene.

    Signup and view all the flashcards

    Crossing Over

    The process where chromosome pairs exchange parts during reproduction.

    Signup and view all the flashcards

    Sex-Linked Genes

    Genes located on sex chromosomes, affecting inheritance based on sex.

    Signup and view all the flashcards

    Altruism

    Behavior that helps others, potentially aiding their survival and reproduction.

    Signup and view all the flashcards

    Reciprocal Altruism

    Helping others with the expectation of future help in return.

    Signup and view all the flashcards

    Kin Selection

    A strategy that favors the reproductive success of relatives over non-relatives.

    Signup and view all the flashcards

    Sociobiology Criticism

    Criticism due to assumption of behavior adaptation without testing.

    Signup and view all the flashcards

    Ethical Debate in Animal Research

    Discussion on the morality of using animals in research, leading to different viewpoints.

    Signup and view all the flashcards

    Study Notes

    Biological Psychology

    • Focuses on the physiological, evolutionary, and developmental mechanisms of behavior and experience
    • Emphasizes the study of brain areas and sub-areas
    • Brain function depends on communication among neurons
    • Neuron activity produces behavior and experience

    Biological Explanations of Behavior

    • Physiological: Links behavior to brain and organ activity (e.g., area of brain enabling bird song)
    • Ontogenetic: Describes behavior development (e.g., the combined role of genes and environment in bird song)
    • Evolutionary: Examines a behavior's evolutionary history (e.g., similar songs in bird species with a common ancestor)
    • Functional: Explains why a behavior or structure evolved (e.g., singing improves mating success)

    Mind-Body Problem

    • Dualism: Mind and body are distinct substances that interact (Descartes proposed mind and brain interact in the pineal gland)
    • Monism: One kind of existence
      • Materialism: Everything is physical/material
      • Mentalism: Only the mind exists
      • Identity: Mental processes are the same as certain brain processes

    Mind-Body Problem (continued)

    • Hard problem: Explaining why brain activity creates experience
    • Easy problems: Identifying brain mechanisms enabling specific mental states (e.g., wakefulness, focus)

    Mind-Body Problem (continued)

    • Research difficulty: Consciousness is not directly observable. Solipsism is the belief that only one's own existence is certain.
    • Questions remain regarding where consciousness occurs, if all animals/plants/rocks experience it, when in human development it begins to emerge and if artificial consciousness could theoretically be produced.

    Genetics of Behavior

    • Mendel (19th century): Inheritance is through genes located on chromosomes.
    • Genotype: Gene pair expression (e.g., BB, Bb, bb)
    • DNA: Deoxyribonucleic acid forms chromosomes, serves as a template for RNA synthesis
      • Double-strand helix structure in chromosomes:
      • Single-strand for RNA synthesis template

    Genetics of Behavior (continued)

    • Genotype Expression:
      • Homozygous: Identical genes in the pair (BB or bb)
      • Heterozygous: Different genes in the pair (Bb)
      • Dominant Gene: Expressed regardless of the other gene in the pair;
      • Recessive Gene: Only expressed if both genes in the pair are recessive

    Genetics of Behavior (continued)

    • Heritability: Estimate of how much variation in a trait is due to genetics. (ranges from 0 to 1)
      • 0 means no heritability contribution
      • 1 means all the variation in the trait is due to genes
      • 0.5 means equal contributions from genes and environment.
    • Determining Heritability: Comparing monozygotic and dizygotic twins, adopted children to their biological and adoptive parents

    Genetics of behavior (continued)

    • Modifiability of heritability -Phenotype/genetic abilities/traits can be modified (e.g. PKU via diet)

    Evolution of Behavior

    • Changes in gene frequencies over generations
    • Changes driven by mutations, recombinations, and new genes.
    • Artificial selection limits reproduction, promoting desired traits

    Evolution of Behavior (Misunderstandings)

    • Lamarckian Evolution: Characteristics acquired during a lifetime are inheritable. (Misconception)
    • Survival of the Fittest: Evolution is about reproduction, not survival.
    • Improvement: Evolution doesn't necessarily lead to improvement, but to adaptation.
    • Individual vs. Species: Evolution benefits genes, not individuals or species

    Sociobiology/Evolutionary Psychology

    • Evolutionary perspective of behavior: why behavior is adaptive through natural selection.
    • Examples: animal vision, sleep patterns, eating habits, sex differences

    Sociobiology/Evolutionary Psychology (continued)

    • Altruism: how genes potentially encourage altruistic behavior
    • Criticisms: assumptions about a behavior being adaptive without proper testing.

    Reasons for Animal Research

    • Similarities in underlying behavior mechanisms across species
    • Easier study of specific mechanisms in non-human animals
    • Understanding of human evolution through animal studies
    • Restrictions in conducting research with human participants.

    Ethical Debate on Animal Research

    • Techniques like brain damage, electrode implantation and hormone injections.
    • Minimalist stance: Acceptable animal research with restrictions.
    • Abolitionist stance: Opposing all animal research
    • Current US legal and ethical standards regarding animal research involve moderation and compromise.

    Careers in Biological Psychology

    • Psychologists (PhDs):
      • Behavioral neuroscientists: Studying brain-behavior relationships
      • Neuroscientists: Neuroanatomy, biochemistry, and neurophysiology.
      • Neuropsychologists: Evaluating/treating behavior in brain-damaged individuals
      • Psychophysiologists: Measuring bodily changes related to activity and mental states
    • Physicians (MDs):
      • Neurologists: Treat brain disorders
      • Neurosurgeons: Perform brain surgery
      • Psychiatrists: Treat mental health conditions

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    This quiz covers key concepts related to genetics and the philosophy of consciousness, including inheritance patterns, gene expression, and the mind-brain problem. It challenges your understanding of the factors that contribute to genetic variation and the complexities of consciousness. Test your knowledge of these fundamental biological concepts!

    More Like This

    Use Quizgecko on...
    Browser
    Browser