The right answers are : b. nitrogenous bases c. phosphates d. sugars.
Deoxyribonucleic acid (DNA) is the genetic information of most living organisms (on the other hand, some viruses, retroviruses, use ribonucleic acid (RNA) as genetic information).
- DNA is a polymer, made of units called nucleotides (or mononucleotides).
- The nucleotide consists of a phosphate + a sugar + a nitrogenous base. In DNA, the nucleotide is a deoxyribonucleotide (in RNA, the nucleotide is a ribonucleotide).
Answer and Explanation:
Mutation:
It is the sudden variation that occurs in the sequence of our DNA either due to factors related to environment or mistakenly. These are inheritable changes in our genes.
Effects:
a. It results in the ability of an organism to adapt to the environmental variations.
b. It can also cause disorders and diseases in an organism.
c. It results in the evolution of organisms.
d. It also results in the variation in an organisms' phenotype.
d. It helps to carry out scientific research.
Patterns of Inheritance:
The inheritance in mutation only occurs when it is in germ cells which leads to the production of gametes and this mutation is known as germ line mutation.
Data analysis:
As only few cells are effected mostly in mutation it can not be detected.
This divergent plate motion explains why the fossil remains of Mesosaurus that were once together are now found on continents thousands of kilometers apart.
