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5 Written questions

5 Matching questions

  1. reproductive isolation
  2. phenotype
  3. disruptive selection
  4. chromosomes
  5. discontinuous variation
  1. a the shown trait
  2. b carries genes and appears during cell division
  3. c phenotypic variation in which there are a discrete number of phenotypes with no intermediate types. Ex: pea color in Mendel's experiment
  4. d driving force behind sympatric speciation extreme values for a trait are favored over intermediate values. E.g.: large nose rather than medium sized nose
  5. e a relationship between two populations in which there is no gene flow between them

5 Multiple choice questions

  1. 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.
  2. opposite of punctuated equilibrium
  3. where a single phenotype is favored, causing the allele frequency to continuously shift in one direction
  4. a phosphate-sugar base
  5. a diploid organism whose chromosomes have two copies of the SAME allele. Opposite of heterozygous

5 True/False questions

  1. cladogenesisa gradual transformation of one species to another


  2. meiosisthe process of cell division in which haploid gametes (eggs and sperm) are creatred


  3. punctuated equilibriumopposite of punctuated equilibrium


  4. sympatric speciationspeciation that occurs when two or more populations of a single species are geographically isolated from each other and then diverge to form two or more new species


  5. parapatric speciationtwo-step process in speciation where selection causes the differentiation of geographically separate, isolated populations of a species and the populations become reproductively isolated as well


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