Which of the following statements is are correct regarding Genetic Mutations 1 While mutations are n...........

Everyday Science Science & Technology

Which of the following statements is/are correct regarding Genetic Mutations?

1. While mutations are necessary for evolution, they can damage existing adaptations as well.

2. If mutations occur in germline cells, then these changes can be categorized as somatic mutations.

Select the correct answer using the code given below:

1 only

2 only

Both 1 and 2

Neither 1 nor 2

Genetic Mutations :

Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms.
These changes occur at many different levels, and they can have widely differing consequences.
In biological systems that are capable of reproduction, we must first focus on whether they are heritable; specifically, some mutations affect only the individual that carries them, while others affect all of the carrier organism’s offspring, and further descendants.
For mutations to affect an organism’s descendants, they must:
occur in cells that produce the next generation, and
affect the hereditary material.
Ultimately, the interplay between inherited mutations and environmental pressures generates diversity among species.
While mutations are necessary for evolution, they can damage existing adaptations as well.
Although various types of molecular changes exist, the word “mutation” typically refers to a change that affects the nucleic acids.
In cellular organisms, these nucleic acids are the building blocks of DNA, and in viruses they are the building blocks of either DNA or RNA.
One way to think of DNA and RNA is that they are substances that carry the longterm memory of the information required for an organism’s reproduction.