Biology in Psychology (Genetics and Heredity)

Biology in Psychology (Genetics and Heredity)

Icebreaker? This or that cards

Lets Review

https://jeopardylabs.com/play/scientific-method-jeopardy-581

Lets Review

Do tomatoes grow fastest under fluorescent, incandescent, or natural light?

What is the effect of intermittent fasting on blood sugar levels?

Is medical marijuana effective for pain reduction in people with chronic pain?

To what extent does remote working increase job satisfaction?

Back to Basics

Cells are the building blocks of living things. Humans have trillions of cells in their body. Cells group together to form tissues and organs.

The cell nucleus is the command center of the cell. Within the cell nucleus is the entire genome, which is all of your genetic material.

The genome is organized into 23 pairs of chromosomes. Within each pair, you get one chromosome from your biological mother and one from your biological father.

Multiple Choice

What is considered the command center of the cell.

• The Cell Nucleus

• The Cell

• The Membrane

Human Genetics

Genes: are sequences of DNA that code for a particular trait.
Alleles: Specific version of a gene

So what is the difference between genes and alleles?

Example: 

• Gene: The "eye color gene".

• Alleles: The "blue eye allele" and the "brown eye allele" which are both variations of the eye color gene. 
  
  

Dominate vs Recessive

dominant allele: allele whose phenotype will be expressed in an individual that possesses that allele
recessive allele: allele whose phenotype will be expressed only if an individual is homozygous for that allele

Punnett Square

Draw

Fill out the Punnett square

How do you inherit you alleles from your parents?

Most cells in your body are soma cells (or body cells) and reproduce by a process called mitosis. In mitosis, 2 identical daughter cells are produced from 1 parent cell. The new daughter cells each have 46 chromosomes like the parent cell did; these new cells are known as diploid cells because they contain 2 of each chromosome (also known as a pair of each chromosome). 

How do you inherit you alleles from your parents?

The cells used in reproduction- the egg and sperm- are known as germ cells and are created through a process called meiosis. In meiosis, 4 daughter cells are produced from one parent cell. Each new daughter cell only has 23 chromosomes (one of each instead of a pair like in mitosis); these new cells are known as haploid cells because they contain half the number of chromosomes as the original parent cell. 

Epigenetics

Epigenetics in psychology provides a framework for understanding how the expression of genes is influenced by experiences and the environment to produce individual differences in behavior, cognition, personality, and mental health.


https://www.youtube.com/watch?v=AvB0q3mg4sQ

Cells of Nervous System

Glia and neurons are the two cell types that make up the nervous system.

What is the difference? Neurons generate and propagate electrical and chemical signals, whereas glia function mainly to modulate neuron function and signaling.

Neuronal communication is made possible by the neuron’s specialized structures.

https://www.youtube.com/watch?v=11-8ecpwOXs
Activity: https://myclass.theinspiredinstructor.com/science/health_diagrams/Neuron_Label.htm

Parts of Nervous System

The brain and spinal cord make up the central nervous system.

The peripheral nervous system is comprised of the somatic and autonomic nervous systems.

-The somatic nervous system transmits sensory and motor signals to and from the central nervous system.

-The autonomic nervous system controls the function of our organs and glands, and can be divided into the sympathetic and parasympathetic divisions.

Somatic vs. Autonomic

​the somatic system controls voluntary movements like walking or reaching, while the autonomic system regulates involuntary bodily functions like heart rate, digestion, and breathing, which you don't consciously control

​Overview Nervous System: https://www.youtube.com/watch?v=x8DjPqdlUbg Overview Peripheral Nervous: Activity: https://www.classtools.net/vortex/202102-T8LgH2

​Somatic: voluntary
Automatic: involuntary

The Brain and the Spinal Cord (CNS)

The brain consists of two hemispheres, each controlling the opposite side of the body.

Each hemisphere can be subdivided into different lobes: frontal, parietal, temporal, and occipital.

What do the different areas of the brain do?
https://www.youtube.com/watch?v=FczvTGluHKM

The Endocrine System

The glands of the endocrine system secrete hormones to regulate normal body functions.

Overview: https://www.youtube.com/watch?v=-SPRPkLoKp8

Activity: https://www.purposegames.com/game/endocrine-system-labeling