DNA
This is the specific part of the DNA molecule that stores genetic information and codes for unique traits.
What are nitrogen bases?
This organized profile of a person’s chromosomes allows scientists to identify chromosomal abnormalities.
What is a karyotype?
These are structures like the whale's pelvis or human tailbone that have little to no current function but remain from an ancestor.
What are vestigial structures?
Higher levels of this gas in the atmosphere trap heat, leading to rising global temperatures and ocean acidification.
What is carbon dioxide (CO2)?
This biological principle, often called "survival of the fittest," explains how organisms best suited to their environment survive and reproduce.
What is Natural Selection?
This is the location where translation takes place in protein synthesis.
What is a ribosome?
Unlike mitosis, the process of meiosis results in this many genetically different haploid cells.
What is four?
This type of selection occurs when individuals with both extreme versions of a trait survive better than those with the average version.
What is disruptive selection?
This environmental issue occurs when humans clear forests for roads and buildings, leading to fragmented habitats and reduced biodiversity.
What is urbanization?
This is the specific molecule that is produced in the nucleus and acts as a "copy" of DNA information to be taken to the ribosome.
What is mRNA?
This process occurs in the nucleus when a cell makes an mRNA copy of a DNA sequence.
What is transcription?
This event during meiosis involves homologous chromosomes exchanging segments of DNA to increase genetic variation.
What is crossing over?
Two species that share a very high percentage of their DNA sequences (such as 97%) are likely to share this.
What is a recent common ancestor?
Species with these types of requirements are at the highest risk of extinction when their specific environment is polluted or destroyed.
What are specialized habitat requirements?
If an environment experiences a prolonged drought and only plants with the deepest roots survive, this specific pattern of selection is occurring.
What is Directional Selection?
If a DNA template strand reads TAC GGA TTT, this would be the resulting mRNA sequence.
What is AUG CCU AAA?
This specific type of mutation introduces an early stop codon, often making the resulting protein incomplete and non functional.
What is a nonsense mutation?
This phenomenon occurs when a few individuals with a random genetic mutation survive a chemical treatment and pass that trait to their offspring.
What is antibiotic (or pesticide) resistance?
A nonnative species that outcompetes native wildlife is an example of this.
What is an invasive species?
This type of mutation occurs when a single nucleotide is changed, but because multiple codons can code for the same amino acid, the protein remains unaffected.
What is a Silent Mutation?
If DNA undergoes DNA replication, and the template strand reads TAC GGA TTT, this is the complementary strand sequence.
What is ATG CCT AAA?
Genetic variation must be present in these specific types of cells for the traits to be passed on to the next generation.
What are gametes?
Wings of birds and insects serve the same function but developed from different ancestral structures, making them these types of structures.
What are analogous structures?
Name two specific actions a community can take to mitigate the negative impacts of deforestation.
What are replanting native trees and implementing sustainable logging/wildlife corridors? (other realistic answers accepted)
This occurs when a single population is divided by environmental pressures and adapts over time until they are genetically and physically distinct species.
What is Speciation?