Which of the following is a process in which the DNA itself is modified by environmental events and those genetic changes are then transmitted to children?
Making matters even more complicated are very recent studies of what is known as epigenetics (see module, “Epigenetics”), a process in which the DNA itself is modified by environmental events, and those genetic changes transmitted to children.
Epigenetics is the study of how cells control gene activity without changing the DNA sequence. "Epi-"means on or above in Greek,and "epigenetic" describes factors beyond the genetic code. Epigenetic changes are modifications to DNA that regulate whether genes are turned on or off.
The scientific discipline of quantitative genetics examines similarities between individuals and analyzes them based on how biologically related they are. Quantitative genetics looks at similarities among individuals, analyzing how biologically related they are.
Do inherited traits or life experiences play a greater role in shaping your personality? The nature versus nurture debate is one of the oldest issues in psychology. The debate centers on the relative contributions of genetic inheritance and environmental factors to human development.
Which of the following is the most accurate description of the methodological advantage of twin studies? Because twins share DNA it is possible to estimate the contribution of genetics to their personality and behavior.
What are epigenetic modifications? A: The addition of reversible changes to histone proteins and DNA.
epigenetics. The study of heritable changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence. Epigenetic marks include covalent DNA modifications and posttranslational histone modifications. phenotype.
The scientific field of behavior genetics attempts to study these differences empirically, either by examining similarities among family members with different degrees of genetic relatedness, or, more recently, by studying differences in the DNA of people with different behavioral traits.
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction.
Twins and siblings can help us understand whether people are different because of genetic differences or because they live in different environments. Identical twins share the same genes, while non-identical twins share, on average, half of their genes with the other twin.
What is nature vs. nurture quizlet?
argument of what determines our personality and behavior: innate biology or life experience. nature-only view. who we are comes from inborn tendencies and genetically based traits. nurture-only view. we are all essentially the same at birth, and we are the product of our experiences.
Socialization is a matter of nurture rather than nature. A century ago, most people thought human behavior resulted from biological instinct. For us as human beings, it is our nature to nurture.
Nature advocates argue that genetics have a high impact on obesity and high blood pressure. Nurture proponents point to the poor eating habits that cause obesity and the limited ability to regulate personal habits that lead to high blood pressure.
Which of the following is a major problem with arriving at a conclusive scientific answer to the nature-nurture debate? Humans cannot easily be randomly assigned to different genetic and environmental conditions.
Which of the following sentences best describes current thinking on the nature-nurture debate? Most psychological traits have a genetic component but nature also has the ability to change even supposedly "fixed" traits such as height.
Which of the following best describes the current thinking regarding the relationship between nature and nurture? Nature and nurture interact in a way that is impossible to separate. Mechanisms of inheritance are to a large degree relevant across biological organisms.
Definition of Epigenetics. -Epigenetics- the study of inherited changes in phenotype (appearance) or gene expression caused by mechanisms other than changes in the underlying DNA sequence.
Epigenetics is the study of how your behaviors and environment can cause changes that affect the way your genes work. Unlike genetic changes, epigenetic changes are reversible and do not change your DNA sequence, but they can change how your body reads a DNA sequence.
Epigenetic changes may be transmitted to offspring. Epigenetic changes are transmissible from cell to cell. An epigenetic effect causes a change in gene expression without altering the sequence of DNA.
the study of heritable modifications of chromatin (DNA or histones) that alter cell- and tissue-specific patterns of gene expression without changing the DNA sequence.
What is epigenetics AP Psychology?
epigenetics. the study of influences on gene expression that occur without a DNA change. evolutionary psychology. the study of the evolution of behavior and the mind, using principles of natural selection.
Epigenetic mechanisms are molecular events that govern the way the environment regulates the genomes of organisms. Epigenetic processes lead to individual differences in appearance, physiology, cognition, and behavior—the group of traits known as the phenotype.
What property of the DNA molecule is responsible for this migration? number of nucleotides in the fragment. Which of the following is true of the dye used to stain the fragments? It increases the contrast between the agar and the DNA fragments.
Micropropagation, therefore, can be used to produce a large number of plants that are genetically identical to a parent plant, as well as to one another.
Asexual reproduction. Costly but worth it because it can maintain genetic diversity. Sexual reproduction. type of chromosomes that are a pair of chromosomes with the same size and structure and contain the same genes. Homologous chromosomes.