Genetics (Punnett Squares)
This allele combination (genotype) is the only way to produce a white snapdragon.
What is yy(recessive)?
This is the primary function of the cell membrane.
What is controlling the movement of substances in and out?
This type of reproduction creates clones of the parent.
What is asexual reproduction?
Darwin's famous observations of finches took place here.
What are the Galapagos Islands?
This scientist is famous for his experiments with pea plants.
This is a key component of natural selection regarding individuals.
An individual with two identical alleles for a trait is called this.
What is Homozygous?
This molecule stores long-term genetic info that codes for traits.
What is DNA?
If a body cell has 24 chromosomes, meiosis results in this many.
What is 12? (Half of 24).
This 3-word phrase describes organisms best adapted to survive.
What is Survival of the Fittest?
This process involves humans breeding organisms for specific traits.
What is Artificial Selection?
The probability of white flowers when crossing a heterozygous yellow (Yy) with a white (yy).
What is 50%?
This is the best definition of a "gene."
What is a segment of DNA carrying instructions for a trait?
Sexual reproduction leads to this "V-word" in a population's traits.
What is Variation?
Darwin proposed that evolution occurs through this specific process.
What is Natural Selection?
These organisms have had their DNA modified by adding genes from another species.
What are Transgenic Organisms?
Two heterozygous parents (Ff) for spotted fur have this % chance of solid puppies.
What is 25%? (Since solid is the recessive trait s).
DNA acts as this type of "messenger" for protein synthesis.
What is a short-term messenger?
This is one way an asexual parent might NOT have identical F1 offspring.
What is Mutation?
This is a key component of natural selection regarding individuals.
What is Heritable Variation? (Individuals vary and pass it on).
This color of snapdragon is expected to be more common (and why).
What is Yellow, because it is the dominant trait?
This is the phenotype of a dog with the genotype "Yy."
What is Yellow? (Based on the snapdragon/allele logic).
Unlike DNA, this is a type of protein that builds cell structures.
What are structural proteins?
These are the specialized daughter cells produced at the end of meiosis.
What are Gametes?
This is why "strongest and fastest" isn't always the "fittest."
What is adaptation to the environment? (Being "fit" means surviving to reproduce, not just being strong).
Contrast one advantage and one disadvantage of Transgenic Organisms.
Advantage: Enhanced traits/yield; Disadvantage: Unknown health/eco impacts (Based on standard transgenic theory).