Darwin and modern synthetic theory
- In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taki… Answer: 2. Stabilizing Selection Here the average-weight babies survive and both extremes (very light and very heavy) die. Selection favours... 1
- Variations caused by mutation, as proposed by Hugo de Vries, are : Answer: 2. random and directionless Hugo de Vries proposed mutation theory. Mutations are large, sudden changes that are random and directio... 1