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Ethan's Science
Ethan Science
45
Science
6th Grade
05/22/2015

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Term
Gene
Definition
A factor that controls a trait.
Term
Allele
Definition
Different forms of a gene
Term
Homozygous Dominant
Definition
Also known as a purebred where both alleles are dominant, BB or MM
Term
Heterozygous
Definition
Also known as hybrid, Bb or Mm
Term
Homozygous Recessive
Definition
When both alleles are recessive, bb or mm
Term
Genotype
Definition
Organisms genetic make up
Term
Phenotype
Definition
Organisms physical make up
Term
Hybrid
Definition
2 different alleles for a trait
Term
Purebred
Definition
Either 2 homozygous dominant, BB, or 2 homozygous recessive, bb
Term
How many total chromosomes do humans have?
Definition
46
Term
Give an example of a recessive genotype
Definition
bb
Term
What does a Punnet Square show you?
Definition
It shows the probability of certain traits on offspring.
Term
Co-Dominance
Definition
When both genes show up equally producing a distinct phenotype, both traits show up in the offspring. Example: spot and stripes
Term
Incomplete Dominance
Definition
When one allele is not completely expressed, as seen in pink flowers.
Term
Inherited Trait
Definition
Trait gotten from the parents
Term
Learned Trait
Definition
Trait acquired over time from experiences.
Term
Who was Gregor Mendel?
Definition
Father of Genetics
Term
Mutation
Definition
Change in the genetic sequence of organism.
Term
Genetic Disorder
Definition
Genetic problem caused by one or more abnormalities in the genome, especially a condition that is present from birth.
Term
Example of Genetic Disorder
Definition
Down's Syndrome
Term
T/F Radiation causes cancer
Definition
True
Term
T/F Exposure to chemicals can cause cancer
Definition
True
Term
T/F Lifestyle factors, such as smoking, can cause cancer
Definition
True
Term
T/F Mutations in the genetic material can cause cancer
Definition
True
Term
What does DNA stand for?
Definition
Deoxyribonucleic acid
Term
What is DNA shaped like?
Definition
A twisted ladder - double helix
Term
What are chains of amino acids made up of?
Definition
Term
List the four nitrogen bases:
Definition
Adenine, Cytosine, Thymine, and Guanine
Term
What does mRNA stand for?
Definition
Messenger RNA
Term
The esophagus, liver, rectum, and gall bladder are all part of which system?
Definition
Digestive System
Term
5 parts of your vertebrae
Definition
1. Cervical
2. Lumbar
3. Thoracic
4. Sacrum
5. Coccyx
Term
List the bones in your left leg:
Definition
Femur, patella, fibula, and tibia, tarpals, metatarpals, phallanges
Term
What two type of fibers are muscles made up of?
Definition
Fast Twitch & Slow Twitch
Term
Cartiladge
Definition
Connective tissue between joints that can be found on the edges of your ears and tip of your nose.
Term
Four things the skeletal system is designed to do:
Definition
1. Protection
2. Support
3. Movement
4. Blood synthesis
Term
3 main functions of the muscular system:
Definition
1. Movement
2. Circulate blood
3. Move food through the digestive system.
Term
4 parts your bones are made up of
Definition
1. Bone marrow
2. Periosteum
3. Compact bone
4. Spongy bone
Term
What part of the bone makes red blood cells?
Definition
Bone Marrow
Term
3 Types of Muscles:
Definition
1. Cardiac
2. Smooth
3. Skeletal
Term
What is it called when muscles work without you knowing it?
Definition
Involuntary actions, heart beating
Term
Where are cardiac muscles found?
Definition
Heart
Term
What is the function of the respiratory system?
Definition
Removes CO2 from the body and brings in O2 for cells.
Term
What is cellular respiration?
Definition
Process in which oxygen and glucose undergo a series of chemical reactions. This is the way cells breakdown glucose for energy.
Term
List all of the parts involved in the respiratory system
Definition
Nose, pharynx, larynx, trachea, bronchi, lungs.
Term
What is the purpose of the digestive system?
Definition
To absorb nutrients from food and remove waste.
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