#Question id: 11152
#Unit 9. Diversity of Life Forms
When sufficient heat is applied, double-stranded DNA denatures into two single-stranded molecules as the heat breaks all of the hydrogen bonds. In an experiment, molecules of single-stranded DNA from species X are separately hybridized with putatively homologous single-stranded DNA molecules from five species (A-E). The hybridized DNAs are then heated, and the temperature at which complete denaturation occurs is recorded. Based on the data below, which species is probably most closely related to species X?
#Question id: 5026
#Unit 11. Evolution and Behavior
Whatever its ultimate cause(s), the Cambrian explosion is a prime example of
#Question id: 4798
#Unit 8. Inheritance Biology
In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in females. We’ll use the symbol Bb for the beard allele and B for the beardless allele. Another independently assorting autosomal allele that produces a black coat (W) is dominant over the allele for white coat (w). A cross allowed between BBbWw (male) X BBbWw (female). What is proportional of female progeny will beard with black coat?
#Question id: 15852
#Unit 5. Developmental Biology
#Question id: 20995
#Unit 12. Applied Biology