#Question id: 16091
#I Life Science/ Life Sciences Group – I-V
#Question id: 19505
#SCPH05 I Biotechnology
#Question id: 4822
#SCPH12 I Genetics
In a particular species of mammal black hair (B) is dominant to green hair (b) and red eyes (R) are dominant to white eyes (r). If a BbRr individual is mated with a bbrrindividual the expected phenotypic ratio of the offspring is 1 black-red : 1 black-white: 1 green-red : 1 green-white. However, when you mate these individuals you find that the phenotypic ratio of the offspring is 6 black-red :1 black-white : 1 green-red : 6 green-white. What could account for this difference?
#Question id: 27823
#Research Methodology
In a research study, if a correlation coefficient between two variables is -0.75, what does this value indicate?
#Question id: 5027
#SCPH06 I Botany
Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?
1. Protostomes invade terrestrial environments.
2. Cambrian explosion occurs.
3. Deuterostomes invade terrestrial environments.
4. Vertebrates become top predators in the seas.