{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

infchi psych - chapter 3 notes

infchi psych - chapter 3 notes - Chapter 3 Notes Biology...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3 Notes Biology and Behavior Nature and Nurture Genome – the complete set of genes of any organism Genetic and Environmental Forces Genotype – the genetic material an individual inherits Phenotype – the observable expression of the genotype, including both body characteristics and behavior Environment – every aspect of an individual and his or her surroundings other than genes 1. Parent’s Genotype-Child’s Genotype Chromosomes – molecules of DNA that transmit genetic information. Chromosomes are made up of DNA. DNA (deoxyribonucleic acid) – molecules that carry all the biochemical instructions involved in the formation and functioning of an organism Genes – sections of chromosomes that are the basic unit of heredity in all living things Sex determination Sex chromosomes – the chromosomes (X and Y) that determine an individual’s gender Diversity and individuality Mutation – a change in a section of DNA Crossing over – the process by which sections of DNA switch from one chromosome to the other. Crossing over promotes variability among individuals. 2. Child’s Genotype-Child’s Phenotype Gene expression: Developmental changes Regulator genes – genes that control the activity of other genes Gene expression: Dominance patterns Alleles – two or more different forms of a gene Dominant allele – the allele that, if present, gets expressed Recessive allele – the allele that is not expressed if a dominant allele is present Homozygous – having two of the same allele for a trait Heterozygous – having two different alleles for a trait Polygenic inheritance – inheritance in which traits are governed by more than one gene Child’s Environment-Child’s Phenotype
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Norm of reaction – all the phenotypes that can theoretically result from a given
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 4

infchi psych - chapter 3 notes - Chapter 3 Notes Biology...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online