In chickens, the allele for feathered legs (F) is dominant over the allele for bare legs (f). In a population of chickens on a farm, 240 chickens have feathered legs (FF or Ff), and 80 chickens have bare legs (ff). How many chickens can be expected to be heterozygous for feathered legs (Ff)? Assume that the conditions of Hardy-Weinberg equilibrium apply to the population.

A. 40
B. 80
C. 160
D. 200

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos

Which strand is synthesized towards the replication fork

What does spontaneous generation mean?