5 Written Questions
5 Matching Questions
- balanced polymorphism
- what's a nucleotide composed of?
- bottleneck effect
- a a steady state in which two or more alleles coexist in a population.
- b a phosphate-sugar base
- c many genes?
- d evolution of new species, families, and higher taxes
- e occurs when a population endures a natural disaster and alleles are greatly reduced in diversity
5 Multiple Choice Questions
- a hypothesis that speciation can result from selective pressures favoring different phenotypes within a population without geographic isolation as a factor
- occurs when a new colony is started by a few peope from the original population. Not much diversity, usually mutations.
- structural similarities derived from two species with independent ancestors. Eg. a bat's wing and a human's hands
- the result of competition between two species that causes the members of different species to become morphologically or behaviorally more different from each other
- DNA is double stranded while RNA is single stranded, DNA has only a nucleus but RNA can have a nucleus or a cytoplasm, the main ingredient in DNA is Thymine while in RNA it's Uracil.
5 True/False Questions
parapatric speciation → a hypothesis that speciation can result from selective pressures favoring different phenotypes within a population without geographic isolation as a factor
phenotype → the genetic makeup of a trait
directional selection → where a single phenotype is favored, causing the allele frequency to continuously shift in one direction
meiosis → the process of cell division in which haploid gametes (eggs and sperm) are creatred
homozygous → carries genes and appears during cell division