A collection of attitudes, values, stories, and expectations about the world that influences our thoughts and actions.
worldview
What structure controls what enters and leaves the cell?
Cell Membrane
What shape does DNA have?
Double Helix
Who is known as the “Father of Genetics”?
Gregor Mendel
Gregor Mendel is known as the Father of Genetics because of his experiments with pea plants.
A fossilized footprint is found in a layer of rock. Is the footprint itself part of the original organism?
No. It is a trace fossil because it is evidence left behind by an organism.
What are some areas where worldview is expressed?
Ethics, religion, philosophy, scientific beliefs, and other areas of life.
What organelle is called the “powerhouse of the cell”?
Mitochondria
What are the four bases in DNA?
Adenine, Thymine, Guanine, and Cytosine.
What is the difference between a gene and an allele?
A gene is a segment of DNA that provides instructions for a characteristic. An allele is a specific form or version of that gene.
An organism dies and leaves a hollow impression in sediment. Later, the hollow fills with sediment and hardens into a copy of the organism's shape. What are these two fossils called?
Mold and cast
How does worldview affect science?
Our worldview influences how we interpret and explain the facts and observations we make.
What process moves molecules from high concentration to low concentration?
Diffusion
What process copies DNA before a cell divides?
Replication
DNA replication makes a copy of DNA before cell division.
What is the difference between genotype and phenotype?
Genotype = genetic makeup/allele combination.
Phenotype = physical or observable characteristic.
Darwin noticed that organisms with certain traits were more likely to survive and reproduce. What process did he propose to explain how these traits could become more common?
Natural selection
What characteristic allows living things to make more organisms of the same kind?
Reproduction.
What is the difference between passive and active transport?
Passive transport does not require energy, while active transport requires energy.
What process uses DNA information to make mRNA?
Transcription
Transcription uses DNA information to make mRNA.
What type of inheritance produces a blended phenotype?
Incomplete Dominance
Neither allele completely dominates, so the offspring shows a blended trait.
Scientists compare rock layers and determine that one layer is younger because it is above another undisturbed layer. What type of dating is being used?
Relative dating
What is a dependent variable?
The factor that is measured or observed as a result.
A cell needs to move potassium ions into the cell against the concentration gradient. What type of transport does it use and why?
Active transport, because the cell must use energy to move the ions against the concentration gradient.
What is the major difference between mitosis and meiosis?
Mitosis vs. Meiosis
Mitosis produces two genetically similar cells, while meiosis produces four haploid cells used in sexual reproduction.
A black chicken (CᴮCᴮ) is crossed with a white chicken (CᵂCᵂ). What will the offspring look like?
Codominance
The offspring will have both black and white traits showing, represented by CᴮCᵂ.
Two organisms have similar underlying bone structures in their limbs but use those limbs for different purposes. What evidence is this called, and how do evolutionists interpret it?
Homologous structures. Evolutionists interpret them as evidence that the organisms share a common ancestor.