NEET PG DENTAL EXAM

EMBRYOLOGY

CHROMOSOMES AND CELL DIVISIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Are all mutations bad?
A
Yes
B
No
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Most mutations are not harmful, but some can be. A harmful mutation can result in a genetic disorder or even cancer. Another kind of mutation is a chromosomal mutation. Chromosomes, located in the cell nucleus, are tiny threadlike structures that carry genes.

Detailed explanation-2: -Some mutations have a positive effect on the organism in which they occur. They are calledbeneficial mutations. They lead to new versions of proteins that help organisms adapt to changes in their environment. Beneficial mutations are essential for evolution to occur.

Detailed explanation-3: -Mutations to this 10 percent can be neutral, beneficial, or harmful. Probably less than half of the mutations to this 10 percent of DNA are neutral. Of the remainder, 999/1000 are harmful or fatal and the remainder may be beneficial.

Detailed explanation-4: -What is a beneficial mutation? A beneficial mutation is a type of mutation that has a positive effect on an organism. These mutations are rare, but significant. The advantage a beneficial mutation provides the organism is passed down from generation to generation, increasing chances for the offspring to survive.

There is 1 question to complete.