Question about epigenetics

Question

Q1. Epigenetics is defined as ‘Changes to the genome which are inherited from one generation to the next which alter _____ _____ but do not involve changes in the ____ _____’.

1. gene sequence; amino acid sequence

2. gene expression; gene sequence

3. amino acid sequence; protein expression

4. gene sequence; gene expression

Answer 1

Hi Elena!!

l’d be glad to help you. First there are some concepts you have to understand.

Genetics is basically the study of heredity. Epigenetic is the study of how the external environment can alter how our DNA is expressed. These changes do not effect the actually sequence of DNA, meaning the DNA nucleotide sequence. However, Epigenetics does alter how your DNA is read and consequently how it is expressed. An example of epigenetic factor can be how your diet can effect gene expression without changing your DNA sequence.

Thus, you can see how the answer is #2.

I hope this helped!!!

The House Of Tutoring with Dr. Ortiz