Answer: An object with twice the mass of another object will weigh twice as much is the statement accurately describes the relationship between mass and weight.
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Explanation: A.Mass is an objects weight multiplied by the amount of gravitational force acting upon the object
Answer:
The answer is D. Double Helix
A. Kidney
It is one of the major organs
Phylogenetic trees show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.
Answer: Point mutation is easily reversible, thus non-lethal
Explanation:
Point mutation is caused by exchange of a single nucleotide for another. These change is called
1) Transition (when a purine base substitute another purine base, or pyrimidine bases substitute each other)
2) Transversion (when a purine base substitute a pyrimidine base).
However, note that a point mutation can be easily reversed by another point mutation; so, the claim that a nucleotide difference in the Hsr12 gene caused the human disease is inaccurate
