A researcher observes a unicellular organism reproducing asexually. The daughter cells are genetically identical except for a few minor variations. Which mechanism is MOST likely responsible for these variations?
Crossing over during mitosis
Independent assortment of chromosomes
Random mutations during DNA replication
Conjugation with another individual
Related Questions
Which statement is FALSE concerning the polarity of water molecules?
It arises from the unequal sharing of electrons between oxygen and hydrogen.
It contributes to the formation of hydrogen bonds.
It allows water to dissolve many ionic compounds.
It causes ice to be less dense than liquid water.
If a substance is hydrophobic, it is likely to be:
A good solvent for ionic compounds.
Highly soluble in water.
Able to form hydrogen bonds with water.
Insoluble in water.
Which of the following statements is incorrect regarding the properties of water?
Water has a high specific heat capacity.
Water is a polar molecule.
Ice is denser than liquid water.
Water molecules form hydrogen bonds.
