Mutations cause variation

Question 1

what are mutations

Answer 1

Mutations are permanent changes to an organism’s DNA sequence.

Question 2

if mutations arise spontaneously. What are these mutations called?

Answer 2

Spontaneous mutations

Question 3

what are mutagens

Answer 3

Mutagens are physical and chemical factors that induce a higher-than-normal rate of mutation.

Question 4

describe mutations in somatic cells

Answer 4

mutations in somatic cells only affect body cells in which the daughter cells are produced via mitosis. cancer is a consequence of mutations in somatic cells. cancer affects the bodies ability to undergo apoptosis.

Question 5

what is apoptosis

Answer 5

Apoptosis is a programmed series of events that lead to cell death as a result of dismantling the internal contents of the cell

Question 6

describe mutations in germline cells

Answer 6

These mutations affect sex cells called gametes. These mutations can be inherited. Mutations in germline cells result in the development of abnormalities.