Patterns of Human Inheritance
A single gene with two alleles has recessive and __________ allele
dominant
What does nature represent? What does nurture represent?
genes, environment
What is a genetic disorder?
A genetic disorder is an abnormal condition that a person inherits through genes or chromosomes.
What is Selective Breeding?
A process where humans choose which plants or animals to breed based on desired traits.
What is the basic unit of life in all living things?
The cell
Brown eyes is a trait determined by a dominant allele. What kind of pattern of inheritance does this represent?
Single Genes With Two Alleles
Which comparison is more correct:
Nature VS nurture
Nature AND nurture
Nature AND nurture
What are the three causes of genetic disorders?
Mutations in the DNA of genes, changes in overall structure, or number of chromosomes.
The macintosh and red delicious apple can be bred to form the empire apple. What is this an example of?
Hybridization through selective breeding
This body system is responsible for carrying oxygen and nutrients through your body.
The circulatory system
Rabbits have three variations in coat color from different allele combinations. What kind of pattern of inheritance does this represent?
Single Genes With Multiple Alleles
It is both!
What are the effects and symptoms of Cystic Fibrosis?
Affects mucus-producing glands, leading to thick, sticky mucus in lungs, pancreas, and other organs.
Respiratory symptoms: chronic coughing, frequent lung infections, shortness of breath.
What is an example of natural cloning in nature?
Strawberries grow new plants from runners.
Bacteria – Binary Fission
These are the thread-like structures in the nucleus that carry genetic information.
chromosomes
Polygenic traits show continuous variation. What kind of pattern of inheritance does this represent?
Traits Controlled by Many Genes
Explain why the nature vs nurture debate is still taking place! Be thorough with your answer and give THREE reasons.
Sickle-Cell Disease, Cystic Fibrosis, Down Syndrome are three examples of genetic diseases. Determine the cause of each.
structure difference, mutation, extra copy of chromosome 21
What is genetic engineering? What is an example? Why might it be beneficial?
Changing an organism’s DNA to give it new traits.
Inserting a gene into corn to make it resistant to pests (GMO crops).
Improves crop yield, Reduces need for pesticides, Can help treat genetic diseases
How many times can light travel around the earth in 1 second?
7.5 times
Give an example of each type of inheritance pattern.
Variable
What is a pedigree? Explain why geneticists use it.
A pedigree is a chart or “family tree” that tracks which members of a family have a particular trait
A pedigree is an important tool that geneticists use to trace the inheritance of traits in humans
Dr. He Jiankui claimed to successfully create genetically modified babies to be resistant to HIV infection. What method did he use to do this?
The CRISPR method
Chimpanzees are significantly stronger than humans, especially when it comes to upper body strength.
How much stronger are they in specific upper-body actions (like climbing, swinging, or gripping)? Why?
Up to 3–5 times stronger than a human.
They have a higher proportion of fast-twitch muscle fibers, which generate more power.
Their muscles and tendons are optimized for explosive strength and agility, which helps in climbing and territorial fighting.