Diving Into Science
In a science experiment or project, what is a criteria?
Criteria are goals that must be satisfied to be able to successfully achieve a challenge or complete an experiment.
Describe a TRAIT that you have as a person
Answers will vary
Define Genotype
The specific allele combination an organism has.
What is Natural Selection?
the process by which populations change over time to better suit their environment
What is the difference between a communicable and non-communicable disease
communicable can be passed from person to person, it is contagious
In a science project or experiment, what are constraints?
Constraints are the factors that limit how you can solve a problem.
What is DNA
The genetic material in a cell that stores and transmits genetic information from one generation to the next.
Define Phenotype
The way an organism looks or acts because of a gene
What is Artifical Selection?
Artificial Slection is when humans choose which organisms live in a poulation in order to change the traits that population has. (dogs)
How do germs spread?
from contact between individuals: many examples.
Why is it important for a science experiment to be replicable and repeatable?
It is important for a science experiment to be replicable and repeatable so that other scientists can get the same results.
What does it mean for a trait to be dominant?
Dominant traits are always expressed when present. They "cover up" the recessive traits.
What is a gene?
A gene is a particular piece of DNA that codes for a trait.
Who first came up with the idea of evolution and natural selection?
Charles Darwin
What are 2 things you can do to keep from getting sick?
answers vary
What is a procedure in science?
In science, a procedure is a step by step process of how to complete a lab or a project.
What does it mean for a trait to be recessive?
Recessive traits are "covered up" by dominant traits. they only show up when the dominant trait is absent.
Why do some traits "skip a generation". For example, a person might have red hair, their mother and father both have brown hair, and their grandmother has red hair.
because the trait is recessive and gets covered up.
What 3 things are necessary for natural selection to occur?
Variation, Selection, and Heredity
What does the Golgi Apparatus do in a cell?
directs things for transport.
What is the difference between accuracy and precision?
Accuracy refers to the ability to get the "right" answer. Precision refers to how close together your measurements are
In a species of rattlesnakes, having a rattler is Dominant (R) and not having a rattler is recessive(r). A male snake that is heterozygous (Rr) for having a rattler mates with a female snake that is homozygous recessive (rr). what is the chance that the baby snake will have a rattler?
50% Chance
Can you determine an organism's genotype just from looking at it?
Sometimes, it would depend on what the phenotype was.
What defines whether an organism is fit or not
If it gets its genes into the next generation.
What are the 3 most common types of germs?